US20170370663A1 - Pistol caliber blowback operated bolt carrier group providing an integrated gas key - Google Patents
Pistol caliber blowback operated bolt carrier group providing an integrated gas key Download PDFInfo
- Publication number
- US20170370663A1 US20170370663A1 US15/628,802 US201715628802A US2017370663A1 US 20170370663 A1 US20170370663 A1 US 20170370663A1 US 201715628802 A US201715628802 A US 201715628802A US 2017370663 A1 US2017370663 A1 US 2017370663A1
- Authority
- US
- United States
- Prior art keywords
- bolt carrier
- carrier group
- pistol caliber
- gas key
- blowback operated
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A3/00—Breech mechanisms, e.g. locks
- F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
- F41A3/54—Bolt locks of the unlocked type, i.e. being inertia operated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A3/00—Breech mechanisms, e.g. locks
- F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
- F41A3/66—Breech housings or frames; Receivers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A3/00—Breech mechanisms, e.g. locks
- F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
- F41A3/14—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
- F41A5/02—Mechanisms or systems operated by propellant charge energy for automatically opening the lock recoil-operated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
- F41A5/18—Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
- F41A5/18—Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
- F41A5/24—Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated by direct action of gas pressure on bolt or locking elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
- F41A5/30—Gas- or recoil-operated, e.g. selection of gas- or recoil-operated systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A3/00—Breech mechanisms, e.g. locks
- F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
Definitions
- the present invention relates to firearms and, more particularly, to a pistol caliber blowback operated bolt carrier group providing an integrated gas key.
- the bolt carrier group is responsible for chambering, firing, and extracting ammunition cartridges from the host firearm.
- the energy to perform these functions is provided by hot gas channeled through the gas key and into the bolt carrier.
- a secure connection between the gas key and the bolt carrier is required.
- Blow back pistol caliber bolt carrier groups are notorious for having failures at the fasteners holding the charging boss or the gas key in place. Mechanical fasteners on bolt carrier groups are insufficient, and as a result, can result in catastrophic failures. The fasteners either break or back out over time. The current devices use an inefficient method of attachment. The fasteners do not offer enough support to the gas key to be considered a stable means of attachment and can eventually break, shear, or back out. Upon such failure, the only way to fix the problem was to repair or replace the fasteners or charging boss.
- pistol caliber blowback operated bolt carrier group includes a bolt carrier having elongated generally cylindrical body; and or a charging boss and a gas key integrally formed into a top portion of said body.
- FIG. 1 is a perspective view of an exemplary embodiment of the present invention
- FIG. 2 is an exploded view of an exemplary embodiment of the present invention demonstrated with associated components
- FIG. 3 is a section view of an exemplary embodiment of the present invention, taken along line 3 - 3 of FIG. 1 ;
- FIG. 4 is a perspective view of an exemplary embodiment of the present invention.
- FIG. 5 is a perspective view of an exemplary embodiment of the present invention.
- an embodiment of the present invention provides a pistol caliber blowback operated bolt carrier group providing an integrated gas key.
- the carrier group providing a bolt carrier having elongated generally cylindrical body; and a gas key integrally formed into a top portion of said body
- the present invention may include a bolt carrier 10 and associated components made of metal alloy or other sufficient hard composite material.
- the associated components include a weight 12 , a weight retaining pin 14 , and a spring 18 -loaded firing pin 16 slidably mounted within the bolt carrier 10 .
- the bolt carrier 10 is generally cylindrical in shape with a longitudinally extending circular bore throughout its length, wherein elongated openings communicate from a top and bottom portions of the carrier 10 , allowing the hammer to extend into the interior of the bolt carrier 10 and strike the firing pin 16 .
- the bolt carrier 10 may extend from a rear portion 30 to a forward portion.
- the upper surface of the bolt carrier 10 top of the bolt carrier is formed with an integral gas key 50 .
- the integral gas key 50 includes a flat charging boss 20 for engagement with a charging handle.
- In the circular bore located near the charging boss 20 may be an extractor 22 having a gripping element to grab and hold onto a portion of an ammunition cartridge. the extractor 22 may engage an extractor pin 24 received therein.
- the weight 12 may be retained within the bore so as to be flush or just inward with the rear portion.
- the weight may be retained by the weight retaining pin 14 .
- the bore may be approximately 0.250′′ in diameter.
- the bolt carrier 10 may be multi axis machined, machined in several steps or setups, forged, or cast into the required shape keeping the gas key integrated into the overall shape.
- a method of using the present invention may include the following.
- the bolt carrier group disclosed above may be provided.
- a user may use the bolt carrier group without the weight 12 and associated weight retaining pin 14 .
- the blow back pistol caliber bolt carrier group, once assembled, can be easily replaced into existing pistol caliber rifle platforms, i.e. the AR-9, AR-40, AR-45 family of weapons and their derivatives.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Toys (AREA)
Abstract
A pistol caliber blowback operated bolt carrier group is provided with an integrated gas key. The carrier group providing a bolt carrier having elongated generally cylindrical body and a gas key integrally formed into a top portion of the body
Description
- This application claims the benefit of priority of U.S. provisional application No. 62/355,678, filed 28 Jun. 2016, the contents of which are herein incorporated by reference.
- The present invention relates to firearms and, more particularly, to a pistol caliber blowback operated bolt carrier group providing an integrated gas key.
- The bolt carrier group is responsible for chambering, firing, and extracting ammunition cartridges from the host firearm. The energy to perform these functions is provided by hot gas channeled through the gas key and into the bolt carrier. For gas-operated firearms a secure connection between the gas key and the bolt carrier is required.
- Blow back pistol caliber bolt carrier groups, however, are notorious for having failures at the fasteners holding the charging boss or the gas key in place. Mechanical fasteners on bolt carrier groups are insufficient, and as a result, can result in catastrophic failures. The fasteners either break or back out over time. The current devices use an inefficient method of attachment. The fasteners do not offer enough support to the gas key to be considered a stable means of attachment and can eventually break, shear, or back out. Upon such failure, the only way to fix the problem was to repair or replace the fasteners or charging boss.
- As can be seen, there is a need for a pistol caliber blowback operated bolt carrier group providing an integrated gas key, thereby eliminating the fasteners by integrating the charging boss into the blow back pistol caliber bolt carrier group. Eliminating the fasteners required to hold the charging boss and/or gas key in place eliminates the failure point altogether by removing the fasteners that cause failure, whereby the present invention performs the intended role without risk of possibly dangerous failures.
- In one aspect of the present invention, pistol caliber blowback operated bolt carrier group includes a bolt carrier having elongated generally cylindrical body; and or a charging boss and a gas key integrally formed into a top portion of said body.
- These and other features, aspects and advantages of the present invention will become better understood with reference to the following drawings, description and claims.
-
FIG. 1 is a perspective view of an exemplary embodiment of the present invention; -
FIG. 2 is an exploded view of an exemplary embodiment of the present invention demonstrated with associated components; -
FIG. 3 is a section view of an exemplary embodiment of the present invention, taken along line 3-3 ofFIG. 1 ; -
FIG. 4 is a perspective view of an exemplary embodiment of the present invention; and -
FIG. 5 is a perspective view of an exemplary embodiment of the present invention. - The following detailed description is of the best currently contemplated modes of carrying out exemplary embodiments of the invention. The description is not to be taken in a limiting sense, but is made merely for the purpose of illustrating the general principles of the invention, since the scope of the invention is best defined by the appended claims.
- Broadly, an embodiment of the present invention provides a pistol caliber blowback operated bolt carrier group providing an integrated gas key. The carrier group providing a bolt carrier having elongated generally cylindrical body; and a gas key integrally formed into a top portion of said body
- Referring to
FIGS. 1 through 5 , the present invention may include abolt carrier 10 and associated components made of metal alloy or other sufficient hard composite material. The associated components include aweight 12, aweight retaining pin 14, and a spring 18-loadedfiring pin 16 slidably mounted within thebolt carrier 10. - The
bolt carrier 10 is generally cylindrical in shape with a longitudinally extending circular bore throughout its length, wherein elongated openings communicate from a top and bottom portions of thecarrier 10, allowing the hammer to extend into the interior of thebolt carrier 10 and strike thefiring pin 16. Thebolt carrier 10 may extend from arear portion 30 to a forward portion. The upper surface of thebolt carrier 10 top of the bolt carrier is formed with anintegral gas key 50. Theintegral gas key 50 includes aflat charging boss 20 for engagement with a charging handle. In the circular bore located near thecharging boss 20 may be anextractor 22 having a gripping element to grab and hold onto a portion of an ammunition cartridge. theextractor 22 may engage anextractor pin 24 received therein. Theweight 12 may be retained within the bore so as to be flush or just inward with the rear portion. The weight may be retained by theweight retaining pin 14. The bore may be approximately 0.250″ in diameter. - The complete assembly of the above-mentioned components is referred to as a bolt carrier group. The
bolt carrier 10 may be multi axis machined, machined in several steps or setups, forged, or cast into the required shape keeping the gas key integrated into the overall shape. - A method of using the present invention may include the following. The bolt carrier group disclosed above may be provided. A user may use the bolt carrier group without the
weight 12 and associatedweight retaining pin 14. The blow back pistol caliber bolt carrier group, once assembled, can be easily replaced into existing pistol caliber rifle platforms, i.e. the AR-9, AR-40, AR-45 family of weapons and their derivatives. - It should be understood, of course, that the foregoing relates to exemplary embodiments of the invention and that modifications may be made without departing from the spirit and scope of the invention as set forth in the following claims.
Claims (9)
1. A pistol caliber blowback operated bolt carrier group, comprising:
a bolt carrier having elongated generally cylindrical body; and
a gas key integrally formed into a top portion of said body.
2. The pistol caliber blowback operated bolt carrier group of claim 1 , further comprising a weight housed in the bolt carrier.
3. The pistol caliber blowback operated bolt carrier group of claim 2 , further comprising a weight retaining pin operative associated with the weight housed in the bolt carrier.
4. A pistol caliber blowback operated bolt carrier group, comprising:
a bolt carrier having elongated generally cylindrical body; and
a charging boss integrally formed into a top portion of said body.
5. The pistol caliber blowback operated bolt carrier group of claim 4 , further comprising a weight housed in the bolt carrier.
6. The pistol caliber blowback operated bolt carrier group of claim 5 , further comprising a weight retaining pin operative associated with the weight housed in the bolt carrier.
7. A pistol caliber blowback operated bolt carrier group, comprising:
a bolt carrier having elongated generally cylindrical body; and
a charging boss and a gas key integrally formed into a top portion of said body.
8. The pistol caliber blowback operated bolt carrier group of claim 7 , further comprising a weight housed in the bolt carrier.
9. The pistol caliber blowback operated bolt carrier group of claim 8 , further comprising a weight retaining pin operative associated with the weight housed in the bolt carrier.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/628,802 US20170370663A1 (en) | 2016-06-28 | 2017-06-21 | Pistol caliber blowback operated bolt carrier group providing an integrated gas key |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201662355678P | 2016-06-28 | 2016-06-28 | |
US15/628,802 US20170370663A1 (en) | 2016-06-28 | 2017-06-21 | Pistol caliber blowback operated bolt carrier group providing an integrated gas key |
Publications (1)
Publication Number | Publication Date |
---|---|
US20170370663A1 true US20170370663A1 (en) | 2017-12-28 |
Family
ID=60675535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/628,802 Abandoned US20170370663A1 (en) | 2016-06-28 | 2017-06-21 | Pistol caliber blowback operated bolt carrier group providing an integrated gas key |
Country Status (1)
Country | Link |
---|---|
US (1) | US20170370663A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11215412B2 (en) * | 2018-11-21 | 2022-01-04 | Daniel Defense, Llc | Free-floating dead mass blowback bolt carrier |
-
2017
- 2017-06-21 US US15/628,802 patent/US20170370663A1/en not_active Abandoned
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11215412B2 (en) * | 2018-11-21 | 2022-01-04 | Daniel Defense, Llc | Free-floating dead mass blowback bolt carrier |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10352636B2 (en) | Bolt carrier support system | |
US7353740B1 (en) | Rapid adjust muzzle system | |
EP2788707B1 (en) | Pistol barrel system and method | |
US9513074B1 (en) | Firearm with interchangeable parts | |
US8819975B2 (en) | Rifle and kit for making same | |
US4765224A (en) | Automatic rifle gas system | |
US8296987B1 (en) | Shotgun improvements | |
US10969182B2 (en) | Semi-automatic rimfire rifle | |
US7302881B1 (en) | Conversion kit and method for a ruger 10/22 semi-automatic .22 caliber rim fire rifle to shoot .17 mach 2 cartridges | |
US6453594B1 (en) | Apparatus for attaching a supplemental device to a minimally altered host firearm | |
US12038250B2 (en) | Recoil system for use in some types of rifles | |
US7735409B1 (en) | Conversion kit and method for a RUGER® 10/22® semi-automatic .22 caliber rim fire gun to shoot .17 mach 2 cartridges | |
US20170241724A1 (en) | Semi-automatic rifle and retrofit kit for a semi-automatic rifle | |
US20130139424A1 (en) | Multi Caliber Quickly Reconfigurable Automatic Machine Gun | |
US8079167B1 (en) | Muzzle loading rifle with centerfire cartridge ignition | |
US20150308762A1 (en) | Intermediate charging handle engagement with carrier of firearm | |
US9689636B2 (en) | Recoil reducing muzzle brake | |
EP2017565A3 (en) | Locking and recocking assembly with swivel breech-lock and rotating locking head, particularly for inertially-actuated weapons using the kinetic energy of recoil | |
US10697722B2 (en) | Side-charging upper for AR style firearm | |
CA2742535C (en) | Weapon with recoil and a braking device, damping this recoil | |
US9546844B2 (en) | Converted muzzleloader arrow gun | |
US8800423B1 (en) | Semi-automatic rifle | |
US7526888B1 (en) | Breach plug for muzzleloading rifle | |
US9441908B2 (en) | Muzzle-loading firearm with a mono block and retaining nut | |
US20170370663A1 (en) | Pistol caliber blowback operated bolt carrier group providing an integrated gas key |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |