US20190011223A1 - Sighting system with foldable front sight with aperture post - Google Patents
Sighting system with foldable front sight with aperture post Download PDFInfo
- Publication number
- US20190011223A1 US20190011223A1 US16/118,313 US201816118313A US2019011223A1 US 20190011223 A1 US20190011223 A1 US 20190011223A1 US 201816118313 A US201816118313 A US 201816118313A US 2019011223 A1 US2019011223 A1 US 2019011223A1
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- United States
- Prior art keywords
- sight
- tower
- post
- firearm
- front sight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G1/00—Sighting devices
- F41G1/01—Sighting devices characterised by the visual combination effect of the respective geometrical forms of fore and rear sight
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G1/00—Sighting devices
- F41G1/02—Foresights
- F41G1/033—Foresights adjustable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G1/00—Sighting devices
- F41G1/06—Rearsights
- F41G1/08—Rearsights with aperture ; tubular or of ring form; Peep sights
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G1/00—Sighting devices
- F41G1/06—Rearsights
- F41G1/16—Adjusting mechanisms therefor; Mountings therefor
- F41G1/26—Adjusting mechanisms therefor; Mountings therefor screw
Definitions
- This invention relates to firearm accessories, specifically to the sights and the corresponding sight pictures.
- Back up iron sights have existed for many years to provide a sturdy and purely mechanical method for aligning a shooter's line of vision with a bullet's trajectory. Over those years, advances have been made to increase the durability, aesthetics, and function of back up iron sights.
- the basic components of sights have stayed the same, namely an aperture in the rear of the gun to narrow the vision and provide the first point of alignment as well as a post in the front of the rifle to provide the second point of alignment with the target.
- the eye, aperture, post, and target are all aligned in a line of sight, then the flight path of the bullet is determined and an effective shot can be made.
- a major factor in how well a shooter will perform is how intuitive sights are to align.
- front sight posts are protected with a surrounding housing, commonly referred to as “ears”, that prevents the post from being moved or damaged should the firearm be dropped or come into contact with foreign objects.
- This protective housing is not intended to create a line of sight on a state of the art front sight.
- the ears on this protective housing or tower provides an extra alignment point, which can improperly be relied upon by the shooter.
- the front sight post must be adjusted for each individual rifle and readjusted to accommodate change in ammunition as well as many other factors if maximum accuracy is to be held.
- the front sight changes position with respect to the ears of its protective housing, thereby changing what is seen when looking through the rear sight aperture.
- the ears surrounding the front sight post do not currently move along with the front sight post to provide continuous alignment. Only the sight post adjusts up and down while the protective ears remain in one position.
- a standard sight picture will have two points of visual alignment.
- the first point that creates the alignment is the front sight post in the center of the rear aperture.
- the second, which is often incorrectly relied upon by the person aiming the firearm would be the “ears” of the housing or apparatus that surrounds the sight post, depending upon the front sight, with the rear aperture.
- a person aiming the firearm often incorrectly relies on the position of the tower unconsciously, particularly if that person often shoots at a constant distance, as may occur at a shooting range.
- the system described herein provides a front sight that adjusts the height of the protective housing when the front sight post is adjusted, thereby maintaining consistent alignment between the two.
- the front sight post can be aligned and in doing so, the arms of the tower of the front sight will also be aligned.
- This system also provides for a very intuitive and visually pleasing coaxial view which lines up multiple similar shapes enhancing a shooter's ability to shoot on target and making target acquisition quicker because the shooter can safely rely on two positioning elements on the front sight, those elements being the front sight post as well as the ears of the protective housing.
- a system wherein the protective housing is separated into multiple components.
- the lower component is connected to the front sight base to provide the stability and adjustments needed when connecting to the firearm.
- the upper component provides protective ears around the front sight post and adjusts along with the lower component while simultaneously adjusting along with the front sight post.
- the top tower rests against the sight post making the top tower and the front sight post a stable system.
- the top tower is moved downward towards the bore of the firearm to adjust the sight post but will return to its standard position resting against the sight post when released.
- the ability of the top tower to return to its resting position against the front sight post allows for continuous coaxial alignment between the sight post and the center of the top tower regardless of the height of the front sight post.
- the continuous alignment of the system removes the problem of misalignment due to conflicting sight pictures when the firearm is raised and the shooter looks through the sights.
- a standard sight picture will have two aliment views. The first being the front sight post in the center of the rear aperture. The second, which is incorrect, would be the tower or apparatus that surrounds the sight post, depending up on the front sight, with the rear aperture.
- the proposed system removes this problem by making both sight pictures one.
- a secondary advantage provided by the system is the ability to adjust the sight post with no tools.
- a detent bar In a standard AR-15 front sight, a detent bar must be depressed in order to move the sight post.
- one hand is used to depress the tower top while the operator's second hand is used to rotate the sight post.
- the ability to move the sight post while having no tools available increases the intuitive nature of the system and allows the system to be adjusted quicker and with less confusion.
- FIG. 1 is a front view of one embodiment of the system showing the components involved;
- FIG. 2 is a front view of one embodiment of the system describing the motion carried out make the system work
- FIG. 3 is a cutaway view of one embodiment of the system showing the components involved in the system including the internal springs;
- FIG. 4 is a view of the front sight on a firearm
- FIG. 5 is an isometric view of the front sight
- FIG. 6 is an isometric view of the rear sight
- FIG. 7 is a side view of the rear sight
- FIG. 8 is an isometric view of the front sight.
- references to “one embodiment”, “an embodiment”, or “embodiments” mean that the feature or features being referred to are included in at least one embodiment of the technology.
- references to “one embodiment”, “an embodiment”, or “embodiments” in this description do not necessarily refer to the same embodiment and are also not mutually exclusive unless so stated and/or except as will be readily apparent to those skilled in the art from the description.
- a feature, structure, act, etc. described in one embodiment may also be included in other embodiments, but is not necessarily included.
- the current technology can include a variety of combinations and/or integrations of the embodiments described herein.
- FIG. 1 displays a front sight mechanism 100 that can be attached to a firearm 400 by means of a base 113 .
- the base 113 attached to a firearm in ways known in the art.
- the sight mechanism is specifically designed for highly customizable firearms, and more specifically the AR-15, which typically has a threaded end.
- the sight mechanism can be attached directly to the threaded end of the barrel, or it can clamp around the barrel or an extension to the barrel.
- the system features a lower tower 103 , a top tower 101 , and a sight post 105 .
- the top tower has a plurality of ears, most preferably two ears 109 that at least partially enclose and protect the top of the sight post.
- the ears when the top tower 101 is in a resting position, the ears form about 3 ⁇ 4 circle (270 degrees) around the top of the sight post, with the target location 115 on the sight post in the direct center or centroid 117 of the partial circle created by the ears 109 of the top tower 101 .
- This invention allows the shooter to sight the firearm, and then it allows for the shooter to make further adjustments later while still maintaining the target location 115 on the sight post 105 to be lined up with the centroid 117 of the top tower 101 . This sort of configuration helps the shooter to focus better and ultimately leads to better accuracy for the shooter.
- This accuracy is further enhanced in how the front sight 100 interacts with the rear sight 401 to create a line of sight with two additional reference points in addition to the centroid 117 and the target location 115 of the front sight for a total of four reference points.
- the center is referred to as a centroid because the ears do not need to form a partial circle, but could also form a full circle or other geometric shapes in other embodiments.
- the top tower 101 of the front sight moves relative to both the sight post and lower tower, but the range is limited by flange on the sight post.
- the sight post 105 fits inside a cylindrical hole 111 on the top tower 101 .
- the sight post 105 has bottom segment with a threaded end 303 that fits into a threaded opening 305 on the lower tower 103 .
- the lower tower 103 also has one or more other openings, or sockets 307 , that hold springs 301 and match up one or more spring contact points 309 on the top tower 101 to create an upward force 311 on the top tower 101 .
- the top tower 101 moves like a washer on a bolt, with the lower tower 103 being the nut and the sight post 105 being the bolt.
- the spring contact points can be part of the lower tower 103 or the top tower 101 and the sockets can be part of the lower tower 103 or the top tower 101 .
- other embodiments could allow for this to be reversed.
- the top tower 101 is fixed relative to the lower tower 103 in the x plane 501 and the y plane 502 , but movement is allowed in the z plane 503 which is the vertical plane when in use, as shown in FIG. 5 .
- the lower tower has a non-circular extension 504 that fits into an insertion opening 505 sized and shaped to fit the non-circular extension 504 .
- the sight post 105 has a sighting location comprised of two intersecting holes 115 on the upper portion of the sight post shown most clearly in FIG. 8 .
- the shooter using the firearm 400 will have a line of sight 402 through a rear sight 401 that goes through the sighting location 115 on the upper portion of the sight post so that the target is aligned with both the rear sight 401 and the upper portion of the sight post 105 .
- the sighting location 115 is comprised of two circular holes. The fact that the sighting location 115 is comprised of two holes allows the shooter to have a line of sight with only a one quarter turn of the front sight post.
- the front sight has an attachment section 113 designed to lock directly on to the gun bore or by locking on to some other gun accessory that is directly fixed to the gun bore.
- the attachment section 113 can be attached by any methods known in the art.
- FIG. 8 shows an alternative attachment means or base 510 .
- the vertical movement of the top tower 101 relative to the lower tower 103 is further limited by a flange 201 or lip in the middle segment of the sight post.
- the flange 201 is larger than the cylindrical hole 111 in the upper tower.
- the flange 201 does not need to be a full circle, but it must be configured to not pass through the cylindrical hole 111 on the top tower 101 .
- one or more springs 301 sit in the one or more sockets 307 , and push on the one or more spring contact points 309 so that to push the top tower 101 against the lip 201 of the sight post 105 .
- the springs 301 can be compression springs, compression washers, or other means known in the art for applying constant pressure.
- the one or more springs are sized to apply less than fifty newtons of force in total, but more than one quarter of a newton all together.
- FIG. 2 demonstrates use of the front sight 100 .
- a user When the front sight 100 needs to be adjusted, a user must apply downward pressure 203 on the top tower 101 to disengage it from the flange 201 of the sight post 105 . That downward pressure 203 must be greater than the pressure applied by the one or more springs and can be applied by one finger on a first hand 207 of the person using the firearm.
- the user can change the level of the top tower 101 by turning 205 the sight post 105 clockwise or counterclockwise, so that it moves up or down relative to the lower tower 103 .
- the user can turn the sight post 105 using two fingers on a second hand 209 . After the sight post 105 is at the desired level, the user can release the downward pressure 203 on the top tower 101 by releasing the one finger 207 so that the top tower 101 will move up to the flange 201 of the sight post.
- the rotation adjusts the level of the sight post and the flange 201 relative to the lower tower 103 , wherein the lower tower is fixed relative to the gun bore. Since the distance between the flange 201 and the sighting location (one of the two holes in the front sight post) 115 on the sight post 105 is also fixed, then the position of the sighting location 115 on the sight post 105 relative to the upper tower is also constant, as long as no downward pressure 203 is applied to the upper tower in an amount greater than the upward force 311 created by the springs. This allows for the firearm user to always see a consistent image of the sighting location 115 on the sight post 105 relative to the partially enclosing ears 109 of the upper tower. In other words, the position as indicated by the dotted lines 117 of the sighting location 115 is constant. This consistency allows for greater firing accuracy as it eliminates the natural and sometimes unconscious bias encountered by shooters using the state of the art front sight.
- FIG. 2 shows the adjustment method used by the system when elevation needs to be adjusted to match the point of impact of the bullet.
- the top tower 101 is moved downward against compression springs 301 into the lower tower 103 . While the top tower 101 is still being held down the sight post 105 is rotated either clockwise or counterclockwise to change its height in relation to the lower tower 103 and thereby changing the point of aim to match the point of impact.
- the top tower 101 is then released and is pushed upward by the compression springs 301 .
- the top tower 101 is once again held securely against the sight post 105 due to the compression springs 301 securely locking the sight post 105 into its new position while maintaining concentricity between the top tower 101 sight picture and the sight post 105 sight picture.
- the front sight allows for the target location 115 to be in the centroid 117 of the front sight ears 109 for two reference points that are aligned even after adjustments are made.
- This front sight is part of a sighting system that also includes a rear sight 401 that also has a sight hole with a center 612 and a centroid 650 that provide two additional reference points after sighting adjustments are made and the system is further clocked for specific shot circumstances of windage and distance.
- This allows for the invented sighting system to create a constant set of reference points which allow for greater shooting accuracy. A total of four reference points are employed with this invention.
- the rear sight is comprised of a rear sight post 608 that moves independently relative to the rest of the rear sight 401 .
- the rear sight is also comprised of an upper tower 603 and a lower tower 604 .
- the upper tower 603 has ears 602 that form an additional reference point around a sight hole 606 having a centroid 612 .
- the ears 602 also have a centroid 650 .
- the position of the centroid 612 of the sight hole 606 can be easily locked into the centroid 650 of the ears 602 with a locking means 610 such as a spring pin that locks to a locking point on the rear sight post 608 .
- a spring 616 acts upon the sight post 608 , pushing the rear sight post 608 away from the lower tower 604 .
- the upper tower 603 moves vertically independently of the lower tower 604 .
- An elevation knob 601 controls the level of the upper tower 603 and the rear sight post 608 .
- the elevation knob 601 has an action point 642 that acts upon a cam (shown as 702 in FIG. 7 ).
- the cam has a progressive radius that adjusts the height of the rear sight post and an upper tower at standard distances with equal turns.
- the progressive radius of the cam 702 is specific to the caliber of the bullet.
- the cam 702 can be changed out for specific calibers.
- the progressive radius of the cam allows for consistent turn lengths or consistent fractions of turns to match up with consistent changes in distance. This allows, for example, for 1/16 th turns to always match up with changes of distance of 100 yards. Current state of the art AR-15 sighting systems do not allow for this.
- the elevation knob 601 has an opening to receive an aperture insert 614 .
- the aperture insert 614 screws into the elevation knob 601 , and will also screw into the sight hole 606 (the sight hole 606 contains threads 704 as shown in FIG. 7 ). This provides a storage mechanism for a second aperture for changing the aperture of the sight hole 606 .
- This sighting system is coupled with a unique method for sighting a firearm employing the presently disclosed sighting system.
- the following steps comprise the preferred embodiment of the procedure for sighting and shooting a firearm employing the presently disclosed sighting system:
- first predetermined target shooting distance from the shooter.
- This first predetermined target distance is 25 yards in the preferred embodiment.
- This first predetermined test distance is 1.4 inches in the preferred embodiment.
- the elevation is adjusted by rotating the front sight post 115 . After at least one bullet strikes the target distance that the first predetermined test distance low of center (it should not be to the right or the left), then proceed to the next step. If the desired point below the center is not hit, the shooter should adjust the windage knob 121 if the shooter is hitting left or right of the target and should adjust using the elevation adjustment 115 to correct in the vertical direction.
- This second predetermined target shooting distance is 50 yards in the preferred embodiment.
- This second predetermined test distance is 0.4 inches in the preferred embodiment. Repeat as necessary.
- FIG. 8 is an isometric view of the front sight showing the four holes 115 in the front sight post.
- the front sight has a clamping screw 514 for attaching to the base 510 to the firearm.
- the front sight also has springs 513 and a detent bar 515 .
- the windage knob 512 is connected to a shaft 511 that operates against the detent bar 515 .
- the front sight is configured to fold around the axis created by the shaft 511 .
- the invention described herein can be manufactured by machining and made by metal, alloy and polymer materials practiced in the art.
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Abstract
Description
- This application claims priority and is a continuation of U.S. Utility application Ser. No. 15/614,501 filed Jun. 5, 2017 and also claims priority to U.S. Provisional Application No. 62/346,432 of the same title and filed Jun. 6, 2016.
- This invention relates to firearm accessories, specifically to the sights and the corresponding sight pictures.
- Back up iron sights have existed for many years to provide a sturdy and purely mechanical method for aligning a shooter's line of vision with a bullet's trajectory. Over those years, advances have been made to increase the durability, aesthetics, and function of back up iron sights. The basic components of sights have stayed the same, namely an aperture in the rear of the gun to narrow the vision and provide the first point of alignment as well as a post in the front of the rifle to provide the second point of alignment with the target. When the eye, aperture, post, and target are all aligned in a line of sight, then the flight path of the bullet is determined and an effective shot can be made. A major factor in how well a shooter will perform is how intuitive sights are to align. If there are inconsistencies in the relative positions of the different sight components that result from range adjustments, wind adjustments, ammunition adjustment, or any other adjustment made to the front sight, then a shooter may become unconsciously biased by lining up components of the sight that are not intended to be aligned.
- Frequently, front sight posts are protected with a surrounding housing, commonly referred to as “ears”, that prevents the post from being moved or damaged should the firearm be dropped or come into contact with foreign objects. This protective housing is not intended to create a line of sight on a state of the art front sight. However, the ears on this protective housing or tower provides an extra alignment point, which can improperly be relied upon by the shooter.
- The front sight post must be adjusted for each individual rifle and readjusted to accommodate change in ammunition as well as many other factors if maximum accuracy is to be held. When the front sight is adjusted it changes position with respect to the ears of its protective housing, thereby changing what is seen when looking through the rear sight aperture. The ears surrounding the front sight post do not currently move along with the front sight post to provide continuous alignment. Only the sight post adjusts up and down while the protective ears remain in one position.
- A standard sight picture will have two points of visual alignment. The first point that creates the alignment is the front sight post in the center of the rear aperture. The second, which is often incorrectly relied upon by the person aiming the firearm, would be the “ears” of the housing or apparatus that surrounds the sight post, depending upon the front sight, with the rear aperture. A person aiming the firearm often incorrectly relies on the position of the tower unconsciously, particularly if that person often shoots at a constant distance, as may occur at a shooting range.
- Current systems typically utilize a front sight detent to ensure the front sight post does not move after adjustment. While effective at keeping the front sight post from moving, it increases the difficulty of adjusting the front sight. A special front sight adjustment tool or an improvised tool such as a bullet must be used to depress the detent, hindering the ability of the operator to turn the front sight post.
- The system described herein provides a front sight that adjusts the height of the protective housing when the front sight post is adjusted, thereby maintaining consistent alignment between the two. When looking through a rear sight aperture at the front sight, the front sight post can be aligned and in doing so, the arms of the tower of the front sight will also be aligned. This system also provides for a very intuitive and visually pleasing coaxial view which lines up multiple similar shapes enhancing a shooter's ability to shoot on target and making target acquisition quicker because the shooter can safely rely on two positioning elements on the front sight, those elements being the front sight post as well as the ears of the protective housing.
- To provide precision alignment in the front sight, a system is utilized wherein the protective housing is separated into multiple components. The lower component is connected to the front sight base to provide the stability and adjustments needed when connecting to the firearm. The upper component provides protective ears around the front sight post and adjusts along with the lower component while simultaneously adjusting along with the front sight post. When no pressure is applied to the upper component, the top tower rests against the sight post making the top tower and the front sight post a stable system. The top tower is moved downward towards the bore of the firearm to adjust the sight post but will return to its standard position resting against the sight post when released. The ability of the top tower to return to its resting position against the front sight post, allows for continuous coaxial alignment between the sight post and the center of the top tower regardless of the height of the front sight post.
- The continuous alignment of the system removes the problem of misalignment due to conflicting sight pictures when the firearm is raised and the shooter looks through the sights. A standard sight picture will have two aliment views. The first being the front sight post in the center of the rear aperture. The second, which is incorrect, would be the tower or apparatus that surrounds the sight post, depending up on the front sight, with the rear aperture. The proposed system removes this problem by making both sight pictures one.
- A secondary advantage provided by the system is the ability to adjust the sight post with no tools. In a standard AR-15 front sight, a detent bar must be depressed in order to move the sight post. In the currently disclosed system, one hand is used to depress the tower top while the operator's second hand is used to rotate the sight post. The ability to move the sight post while having no tools available increases the intuitive nature of the system and allows the system to be adjusted quicker and with less confusion.
- The construction designed to carry out the system will hereinafter be described, together with other features thereof.
- The system will be more readily understood from a reading of the following specification and by reference to the accompanying drawings forming a part thereof, wherein an example of the system is shown and wherein:
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FIG. 1 is a front view of one embodiment of the system showing the components involved; -
FIG. 2 is a front view of one embodiment of the system describing the motion carried out make the system work; -
FIG. 3 is a cutaway view of one embodiment of the system showing the components involved in the system including the internal springs; -
FIG. 4 is a view of the front sight on a firearm; -
FIG. 5 is an isometric view of the front sight; -
FIG. 6 is an isometric view of the rear sight; -
FIG. 7 is a side view of the rear sight; -
FIG. 8 is an isometric view of the front sight. - The following detailed description of the invention references the accompanying drawings that illustrate specific embodiments in which the invention can be practiced. The embodiments are intended to describe aspects of the invention in sufficient detail to enable those skilled in the art to practice the invention. Other embodiments can be utilized and changes can be made without departing from the scope of the current invention. The following detailed description is, therefore, not to be taken in a limiting sense. The scope of the current invention is defined only by the claims, along with the full scope of equivalents to which such claims are entitled.
- In this description, references to “one embodiment”, “an embodiment”, or “embodiments” mean that the feature or features being referred to are included in at least one embodiment of the technology. Separate references to “one embodiment”, “an embodiment”, or “embodiments” in this description do not necessarily refer to the same embodiment and are also not mutually exclusive unless so stated and/or except as will be readily apparent to those skilled in the art from the description. For example, a feature, structure, act, etc. described in one embodiment may also be included in other embodiments, but is not necessarily included. Thus, the current technology can include a variety of combinations and/or integrations of the embodiments described herein.
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FIG. 1 displays afront sight mechanism 100 that can be attached to afirearm 400 by means of abase 113. The base 113 attached to a firearm in ways known in the art. In a preferred embodiment, the sight mechanism is specifically designed for highly customizable firearms, and more specifically the AR-15, which typically has a threaded end. The sight mechanism can be attached directly to the threaded end of the barrel, or it can clamp around the barrel or an extension to the barrel. The system features alower tower 103, atop tower 101, and asight post 105. The top tower has a plurality of ears, most preferably twoears 109 that at least partially enclose and protect the top of the sight post. In a preferred embodiment, when thetop tower 101 is in a resting position, the ears form about ¾ circle (270 degrees) around the top of the sight post, with thetarget location 115 on the sight post in the direct center orcentroid 117 of the partial circle created by theears 109 of thetop tower 101. This invention allows the shooter to sight the firearm, and then it allows for the shooter to make further adjustments later while still maintaining thetarget location 115 on thesight post 105 to be lined up with thecentroid 117 of thetop tower 101. This sort of configuration helps the shooter to focus better and ultimately leads to better accuracy for the shooter. This accuracy is further enhanced in how thefront sight 100 interacts with therear sight 401 to create a line of sight with two additional reference points in addition to thecentroid 117 and thetarget location 115 of the front sight for a total of four reference points. The center is referred to as a centroid because the ears do not need to form a partial circle, but could also form a full circle or other geometric shapes in other embodiments. Due to the innovations disclosed herein, the front sightpost target location 115 or hole lines up in thecentroid 117 created by theears 109 even after adjustments are made to the elevation or windage of the front sight. Windage, or side to side movement of the sight, is controlled by thewindage knob 121. Elevation, or vertical movement of the sight post which is adjusted for different shot distances, is controlled by rotating thesight post 105 while pushing down on thetop tower 101. - The
top tower 101 of the front sight moves relative to both the sight post and lower tower, but the range is limited by flange on the sight post. Turning toFIG. 3 , thesight post 105 fits inside acylindrical hole 111 on thetop tower 101. Thesight post 105 has bottom segment with a threadedend 303 that fits into a threadedopening 305 on thelower tower 103. Thelower tower 103 also has one or more other openings, orsockets 307, that holdsprings 301 and match up one or more spring contact points 309 on thetop tower 101 to create anupward force 311 on thetop tower 101. In this configuration, thetop tower 101 moves like a washer on a bolt, with thelower tower 103 being the nut and thesight post 105 being the bolt. In the disclosed invention, the spring contact points can be part of thelower tower 103 or thetop tower 101 and the sockets can be part of thelower tower 103 or thetop tower 101. However, other embodiments could allow for this to be reversed. - The
top tower 101 is fixed relative to thelower tower 103 in thex plane 501 and they plane 502, but movement is allowed in thez plane 503 which is the vertical plane when in use, as shown inFIG. 5 . In the preferred embodiment, the lower tower has anon-circular extension 504 that fits into aninsertion opening 505 sized and shaped to fit thenon-circular extension 504. In other embodiments, there can be more than one extension and corresponding insertion openings, and the extension and corresponding insertion openings can be on the top tower or the lower tower. - In the preferred embodiment, the
sight post 105 has a sighting location comprised of two intersectingholes 115 on the upper portion of the sight post shown most clearly inFIG. 8 . Referring toFIG. 4 , the shooter using thefirearm 400 will have a line ofsight 402 through arear sight 401 that goes through thesighting location 115 on the upper portion of the sight post so that the target is aligned with both therear sight 401 and the upper portion of thesight post 105. As stated, in the preferred embodiment, thesighting location 115 is comprised of two circular holes. The fact that thesighting location 115 is comprised of two holes allows the shooter to have a line of sight with only a one quarter turn of the front sight post. - The front sight has an
attachment section 113 designed to lock directly on to the gun bore or by locking on to some other gun accessory that is directly fixed to the gun bore. Theattachment section 113 can be attached by any methods known in the art.FIG. 8 shows an alternative attachment means or base 510. - The vertical movement of the
top tower 101 relative to thelower tower 103 is further limited by aflange 201 or lip in the middle segment of the sight post. Theflange 201 is larger than thecylindrical hole 111 in the upper tower. Theflange 201 does not need to be a full circle, but it must be configured to not pass through thecylindrical hole 111 on thetop tower 101. Additionally, one ormore springs 301 sit in the one ormore sockets 307, and push on the one or more spring contact points 309 so that to push thetop tower 101 against thelip 201 of thesight post 105. Thesprings 301 can be compression springs, compression washers, or other means known in the art for applying constant pressure. In a preferred embodiment, the one or more springs are sized to apply less than fifty newtons of force in total, but more than one quarter of a newton all together. -
FIG. 2 demonstrates use of thefront sight 100. When thefront sight 100 needs to be adjusted, a user must applydownward pressure 203 on thetop tower 101 to disengage it from theflange 201 of thesight post 105. Thatdownward pressure 203 must be greater than the pressure applied by the one or more springs and can be applied by one finger on afirst hand 207 of the person using the firearm. The user can change the level of thetop tower 101 by turning 205 thesight post 105 clockwise or counterclockwise, so that it moves up or down relative to thelower tower 103. The user can turn thesight post 105 using two fingers on asecond hand 209. After thesight post 105 is at the desired level, the user can release thedownward pressure 203 on thetop tower 101 by releasing the onefinger 207 so that thetop tower 101 will move up to theflange 201 of the sight post. - The rotation adjusts the level of the sight post and the
flange 201 relative to thelower tower 103, wherein the lower tower is fixed relative to the gun bore. Since the distance between theflange 201 and the sighting location (one of the two holes in the front sight post) 115 on thesight post 105 is also fixed, then the position of thesighting location 115 on thesight post 105 relative to the upper tower is also constant, as long as nodownward pressure 203 is applied to the upper tower in an amount greater than theupward force 311 created by the springs. This allows for the firearm user to always see a consistent image of thesighting location 115 on thesight post 105 relative to the partially enclosingears 109 of the upper tower. In other words, the position as indicated by the dottedlines 117 of thesighting location 115 is constant. This consistency allows for greater firing accuracy as it eliminates the natural and sometimes unconscious bias encountered by shooters using the state of the art front sight. -
FIG. 2 shows the adjustment method used by the system when elevation needs to be adjusted to match the point of impact of the bullet. Thetop tower 101 is moved downward against compression springs 301 into thelower tower 103. While thetop tower 101 is still being held down thesight post 105 is rotated either clockwise or counterclockwise to change its height in relation to thelower tower 103 and thereby changing the point of aim to match the point of impact. Thetop tower 101 is then released and is pushed upward by the compression springs 301. Thetop tower 101 is once again held securely against thesight post 105 due to the compression springs 301 securely locking thesight post 105 into its new position while maintaining concentricity between thetop tower 101 sight picture and thesight post 105 sight picture. - As stated above, the front sight allows for the
target location 115 to be in thecentroid 117 of thefront sight ears 109 for two reference points that are aligned even after adjustments are made. This front sight is part of a sighting system that also includes arear sight 401 that also has a sight hole with a center 612 and acentroid 650 that provide two additional reference points after sighting adjustments are made and the system is further clocked for specific shot circumstances of windage and distance. This allows for the invented sighting system to create a constant set of reference points which allow for greater shooting accuracy. A total of four reference points are employed with this invention. - In referring to
FIG. 6 showing the preferred embodiment of the rear sight, the rear sight is comprised of arear sight post 608 that moves independently relative to the rest of therear sight 401. The rear sight is also comprised of anupper tower 603 and alower tower 604. Theupper tower 603 hasears 602 that form an additional reference point around asight hole 606 having a centroid 612. Theears 602 also have acentroid 650. The position of the centroid 612 of thesight hole 606 can be easily locked into thecentroid 650 of theears 602 with a locking means 610 such as a spring pin that locks to a locking point on therear sight post 608. Aspring 616 acts upon thesight post 608, pushing therear sight post 608 away from thelower tower 604. Theupper tower 603 moves vertically independently of thelower tower 604. Anelevation knob 601 controls the level of theupper tower 603 and therear sight post 608. Theelevation knob 601 has an action point 642 that acts upon a cam (shown as 702 inFIG. 7 ). The cam has a progressive radius that adjusts the height of the rear sight post and an upper tower at standard distances with equal turns. The progressive radius of thecam 702 is specific to the caliber of the bullet. Thecam 702 can be changed out for specific calibers. The progressive radius of the cam allows for consistent turn lengths or consistent fractions of turns to match up with consistent changes in distance. This allows, for example, for 1/16th turns to always match up with changes of distance of 100 yards. Current state of the art AR-15 sighting systems do not allow for this. - The
elevation knob 601 has an opening to receive anaperture insert 614. In the preferred embodiment, the aperture insert 614 screws into theelevation knob 601, and will also screw into the sight hole 606 (thesight hole 606 containsthreads 704 as shown inFIG. 7 ). This provides a storage mechanism for a second aperture for changing the aperture of thesight hole 606. - The unique features of this sighting system are coupled with a unique method for sighting a firearm employing the presently disclosed sighting system. The following steps comprise the preferred embodiment of the procedure for sighting and shooting a firearm employing the presently disclosed sighting system:
- 1. Use the
windage knob 618 of therear sight 401 so that the rear sight is in the center of the adjustment range. - 2. Use the
elevation knob 601 of the rear sight to put the rear sight on the lowest setting. The rear sight is at the lowest setting when turning the knob in the lowering direction does not lower theupper tower 602. - 3. Place a target at a first predetermined target shooting distance from the shooter. This first predetermined target distance is 25 yards in the preferred embodiment. Use only the
windage knob 121 andelevation adjustment 115 on the front sight to shoot at least one bullet a first predetermined test distance low of center. This first predetermined test distance is 1.4 inches in the preferred embodiment. The elevation is adjusted by rotating thefront sight post 115. After at least one bullet strikes the target distance that the first predetermined test distance low of center (it should not be to the right or the left), then proceed to the next step. If the desired point below the center is not hit, the shooter should adjust thewindage knob 121 if the shooter is hitting left or right of the target and should adjust using theelevation adjustment 115 to correct in the vertical direction. - 4. Place the target at a second predetermined target shooting distance from the shooter. This second predetermined target shooting distance is 50 yards in the preferred embodiment. Use only the
windage knob 121 andelevation adjustment 115 on the front sight to shoot at least one bullet a second predetermined test distance low of center. This second predetermined test distance is 0.4 inches in the preferred embodiment. Repeat as necessary. - 5. Place the target at 200 yards to confirm zero. If zero is not confirmed, repeat steps 2 through 5.
- The remaining steps are for shooting after the firearm has been sighted:
- 6. Use the numbers or clicks on the
elevation knob 601 of the rear sight to adjust for desired distance. - 7. Use the
windage knob 618 of the rear sight to adjust for wind drift. -
FIG. 8 is an isometric view of the front sight showing the fourholes 115 in the front sight post. The front sight has a clampingscrew 514 for attaching to the base 510 to the firearm. The front sight also hassprings 513 and a detent bar 515. Thewindage knob 512 is connected to a shaft 511 that operates against the detent bar 515. The front sight is configured to fold around the axis created by the shaft 511. - The invention described herein can be manufactured by machining and made by metal, alloy and polymer materials practiced in the art.
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/118,313 US20190011223A1 (en) | 2016-06-06 | 2018-08-30 | Sighting system with foldable front sight with aperture post |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201662346432P | 2016-06-06 | 2016-06-06 | |
US16/118,313 US20190011223A1 (en) | 2016-06-06 | 2018-08-30 | Sighting system with foldable front sight with aperture post |
Publications (1)
Publication Number | Publication Date |
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US20190011223A1 true US20190011223A1 (en) | 2019-01-10 |
Family
ID=60483090
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
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US15/614,501 Active US10317171B2 (en) | 2016-06-06 | 2017-06-05 | System for sight adjustment |
US16/118,313 Abandoned US20190011223A1 (en) | 2016-06-06 | 2018-08-30 | Sighting system with foldable front sight with aperture post |
US16/352,310 Abandoned US20190249952A1 (en) | 2016-06-06 | 2019-04-30 | Sighting system with foldable front sight with aperture post |
Family Applications Before (1)
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US15/614,501 Active US10317171B2 (en) | 2016-06-06 | 2017-06-05 | System for sight adjustment |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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US16/352,310 Abandoned US20190249952A1 (en) | 2016-06-06 | 2019-04-30 | Sighting system with foldable front sight with aperture post |
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US (3) | US10317171B2 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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USD892257S1 (en) * | 2017-04-08 | 2020-08-04 | General Manufacturing, LLC | Front sight post |
USD939658S1 (en) * | 2019-10-07 | 2021-12-28 | Midwest Industries, Inc. | Firearm sight |
USD950672S1 (en) * | 2020-12-01 | 2022-05-03 | Shenzhen Leiding Outdoor Equipment Trade Co., Ltd | Set of front sight and rear sight for guns |
USD995697S1 (en) * | 2021-07-07 | 2023-08-15 | Midwest Industries, Inc. | Firearm front sight |
US20230272997A1 (en) * | 2022-01-28 | 2023-08-31 | Scalarworks, LLC | Firearm sight with adjustable peep |
USD1001951S1 (en) * | 2022-10-18 | 2023-10-17 | Leapers, Inc. | Firearm sight |
USD1010056S1 (en) * | 2020-08-25 | 2024-01-02 | Magpul Industries Corp. | Gun sight |
USD1010057S1 (en) * | 2020-08-25 | 2024-01-02 | Magpul Industries Corp. | Gun sight |
JP7550198B2 (en) | 2021-10-15 | 2024-09-12 | ヘックレル・ウント・コッホ・ゲーエムベーハー | Adjustable sight assembly |
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USD878510S1 (en) * | 2017-06-30 | 2020-03-17 | Bushnell Inc. | Gunsight |
US10222179B2 (en) * | 2017-07-17 | 2019-03-05 | Vista Outdoor Operations Llc | Backup gunsights |
USD860374S1 (en) | 2017-10-05 | 2019-09-17 | Vista Outdoor Operations Llc | Backup gunsight |
US10119784B1 (en) * | 2018-01-15 | 2018-11-06 | Leapers, Inc. | Single axis lock and pivot for a selectively configurable firearm sight |
EP3543638A1 (en) * | 2018-03-20 | 2019-09-25 | Next Generation Tactical, LLC | Positioning mechanism for sighting systems of guns |
US10605565B1 (en) * | 2019-01-16 | 2020-03-31 | WHG Properties, LLC | Adjustable rear sight for a firearm |
USD1028160S1 (en) * | 2020-05-29 | 2024-05-21 | Matthew Balli | Sight enhancer |
CN115552194A (en) | 2020-08-26 | 2022-12-30 | 麦格普工业公司 | Backup sight with compact bore, centered sight post, and small windage yaw stop mechanism |
US12025406B2 (en) * | 2020-10-13 | 2024-07-02 | Christopher Allen Humphries | Scope mount apparatus and method |
US20240027170A1 (en) * | 2022-07-23 | 2024-01-25 | Division Group, LLC | Pivot mount for an optical aiming device |
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US2585933A (en) * | 1949-12-08 | 1952-02-19 | Us Sec War | Adjustable rear sight for firearms |
AT393558B (en) * | 1985-01-22 | 1991-11-11 | Steyr Daimler Puch Ag | MECHANICAL TARGETING DEVICE FOR RIFLES |
US6886289B1 (en) * | 2004-01-30 | 2005-05-03 | R7Bar, Llc | Elevation adjustable firearm front sight with user changeable sighting element |
DE102007063610A1 (en) * | 2007-02-01 | 2008-10-02 | Heckler & Koch Gmbh | visor element |
US8375619B2 (en) * | 2010-02-18 | 2013-02-19 | Troy Industries, Inc. | Incrementally adjustable sight |
DE102014019273A1 (en) * | 2014-12-23 | 2016-06-23 | German Sport Guns Gmbh | Targeting device for a firearm |
US10222179B2 (en) * | 2017-07-17 | 2019-03-05 | Vista Outdoor Operations Llc | Backup gunsights |
-
2017
- 2017-06-05 US US15/614,501 patent/US10317171B2/en active Active
-
2018
- 2018-08-30 US US16/118,313 patent/US20190011223A1/en not_active Abandoned
-
2019
- 2019-04-30 US US16/352,310 patent/US20190249952A1/en not_active Abandoned
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD892257S1 (en) * | 2017-04-08 | 2020-08-04 | General Manufacturing, LLC | Front sight post |
USD939658S1 (en) * | 2019-10-07 | 2021-12-28 | Midwest Industries, Inc. | Firearm sight |
USD1010056S1 (en) * | 2020-08-25 | 2024-01-02 | Magpul Industries Corp. | Gun sight |
USD1010057S1 (en) * | 2020-08-25 | 2024-01-02 | Magpul Industries Corp. | Gun sight |
USD950672S1 (en) * | 2020-12-01 | 2022-05-03 | Shenzhen Leiding Outdoor Equipment Trade Co., Ltd | Set of front sight and rear sight for guns |
USD995697S1 (en) * | 2021-07-07 | 2023-08-15 | Midwest Industries, Inc. | Firearm front sight |
JP7550198B2 (en) | 2021-10-15 | 2024-09-12 | ヘックレル・ウント・コッホ・ゲーエムベーハー | Adjustable sight assembly |
US20230272997A1 (en) * | 2022-01-28 | 2023-08-31 | Scalarworks, LLC | Firearm sight with adjustable peep |
USD1001951S1 (en) * | 2022-10-18 | 2023-10-17 | Leapers, Inc. | Firearm sight |
Also Published As
Publication number | Publication date |
---|---|
US10317171B2 (en) | 2019-06-11 |
US20170350674A1 (en) | 2017-12-07 |
US20190249952A1 (en) | 2019-08-15 |
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