BG63279B1 - Attachment for changing the calibre of automatic pistol - Google Patents

Abstract

The attachment shall find application as a means for converting the well-known Makarov single calibre pistol into a pistol making use of cartridges with 9x18 mm, 380 ACP and 221R calibre for sports, military and hunting firing. The attachment contains a barrel of a smaller bore, breech box (5), ejector (6) and striking pin (7). The latter, together with the reversible spring (3) and body (8) of magazine (4) have changed internal surfaces and cross sections. 3 claims, 1 figure

Description

Technical field

The invention relates to an automatic pistol caliber changeover attachment that will find application as a means of converting the famous Makarov automatic pistol from a single caliber pistol allowing the use of 9 x 18 mm, 380 ACP and 221R cartridges for sports, military and hunting shootings.

BACKGROUND OF THE INVENTION

A device for changing the caliber of a pistol is known, being a replaceable sleeve in the form of a smaller cartridge, built into the pistol body, a larger caliber weapon through a nozzle. In this way, the gun adapts to the use of a smaller caliber sleeve as a barrel. The sleeve can be selectively replaced depending on the body of the gun and loaded into the barrel of a larger-caliber weapon, making it possible to fire smaller-caliber rounds from a larger-caliber weapon. The signal cartridge, i. The smaller caliber cartridge can be ignited by a second cartridge impactor of the cartridge-mounted sleeve or by the standard larger caliber percussion gun / 1 / US 4 418 488.

A disadvantage of the known solution is the sophisticated mounting of the cartridge-shaped removable sleeve in the barrel box, as well as the relatively low degree of precision of firing when using smaller caliber cartridges.

Known automatic pistol consisting of a cartridge, a barrel box, a barrel corresponding to the cartridge and a barrel box, a spring providing the reciprocating movement of the barrel and a set for changing the caliber of a pistol from a larger caliber pistol to a smaller caliber pistol .

The pistol caliber change kit includes a smaller caliber barrel fitted at the rear with attachment jaws for inserting a barrel into the barrel box and a barrel element fully enclosing a smaller caliber barrel extension barrel. of the return spring. A flat surface is formed on the side surface of the smaller diameter barrel to secure one of these jaws to insert a smaller caliber barrel into the housing. The length of the barrel bridge element is determined by the size of the step that determines the transition from one caliber to another. / 2 / US 4 127,056

A disadvantage of the known kit is the complexity of replacing the main elements of the gun with their corresponding elements of the kit.

A device is known for changing the caliber of a .45 automatic pistol .45 caliber to a .22 automatic pistol without making any changes to the appearance of the pistol.

An automatic pistol caliber changeover device consisting of a barrel fitted at its rear end with attachment jaws, an extension piece, a return spring, and a filler corresponding to that barrel. / 3 / US 3 657 959.

A disadvantage of the known solution is the presence of attachment jaws, which determine the complex attachment of the barrel of smaller caliber to the barrel box and the lower degree of accuracy when firing small caliber cartridges.

It is an object of the invention to provide an attachment for a simple and convenient change of caliber of an automatic pistol, which will ensure its conversion from a single-caliber to a multi-caliber pistol with increased scope and maximum precision shot with smaller cartridges.

SUMMARY OF THE INVENTION

The essence of the invention is to provide an attachment for changing the caliber of an automatic pistol, consisting of a barrel protecting the extension part and a filler corresponding to the barrel. The barrel is smaller in caliber, and the internal molding surfaces and cross sections of the barrel, ejector, impactor, return spring and filler body are shaped in accordance with the barrel caliber.

The attachment is used to change the caliber of Makarov pistol from 9x18 mm and 380 ACP to a caliber that allows the firing of a 221 R. cartridge.

Using the attachment, the one-caliber automatic pistol becomes a multi-caliber pistol by replacing the barrel, barrel, ejector, impactor, return spring and the body of the cartridge entirely.

The advantages of the plug-in according to the invention are expressed in the following.

The use of the protection device of the present invention creates the ability to fire precision rifles of smaller caliber, resulting in the newly formed small-caliber automatic pistol turns into an accurate, reliable and inexpensive sports and training weapon.

The preservation of the outer shaping surfaces of the plug-in elements and the change only of the inner shaping surfaces and the parameters of the elastic elements determines their seamless incorporation into the main weapon with a larger caliber, while maintaining its extremely high performance and reliability.

The use of the attachment allows for high cost-effectiveness through the use of 221 R caliber cartridges, which are significantly cheaper and safer for the trainee to shoot accurately.

The design of the plug-in object of the invention provides simplicity, safety and reliability in operation and represents a new solution, feasible due to the originality of the element design, leading to optimal preservation of the parameters determining the accuracy of the shot due to the use of optimal shapes, sizes and parameters the details of the realized design of the plugin.

Description of the attached figures

An exemplary embodiment of the attachment illustrating the nature of the invention and method of application by indicating the basic line of replacement of the respective elements of the main weapon with the elements of the attachment is shown in the accompanying figure, representing an axonometric view of the elements of the attachment relative to the housing of the main weapon.

Examples of carrying out the invention

The following example illustrates the invention without limiting its scope.

The Makarov automatic pistol caliber change attachment, without any change in the appearance of the pistol, consists of a smaller caliber barrel 1 protecting the extension part 2, a return spring 3, a filler 4 corresponding to that barrel 1, a box 5 , the ejector 6 and the impactor 7. The barrel 5, the ejector 6, the impactor 7, the return spring 3 and the body 8 of the filler 4 have altered internal shaping surfaces, cross sections and structural changes corresponding to the smaller caliber of the shot cartridge. The return spring 3 has changed power parameters and a cross section. The spring 11 of the filler 4 has changed power parameters.

Application of the invention

The automatic pistol calibration attachment of the invention is used to change the Makarov pistol caliber from 9x18 mm and 380 ACP to a caliber capable of firing a 221 R cartridge.

The use of the plugin is as follows.

The main weapon is dismantled - the Makarov pistol 9x18, or the Makarov pistol 380 ACP, after which the standard elements corresponding to the elements of the attachment are replaced with their corresponding elements of the attachment, the object of the invention. To the housing 9 of the Makarov pistol, a barrel of smaller caliber 1, the protective extension part 2 and the return spring 3 are mounted in series. Then, the barrel box 5 is mounted to the housing 9 of the pistol. The barrel box 5 is provided with external molding surfaces. which is attached to the housing 9 of the main gun and modified internal molding surfaces, cross-sections and structural modifications corresponding to the smaller caliber of the barrel 1, which is connected to the barrel with smaller caliber 1 in the barrel 5. The barrel 5 is provided with a ejector 6 and a striker 7 corresponding to the smaller barrel 1 caliber with retained outer molding surfaces and modified inner molding surfaces corresponding to the smaller caliber firing cartridge. The filler 4 corresponding to the barrel of smaller caliber 1 is mounted on the housing 9 of the gun by a clamp 10. 10 The filler 4 is attached to the clamp 10 on the preserved outer molding surfaces of its body 8 with altered internal shaping surfaces, cross sections and cross sections modifications corresponding to the smaller caliber of the fired cartridge. With the pistol thus assembled, the standard elements of its pistol were replaced with their corresponding elements from the attachment, whereby the single-caliber automatic pistol of larger caliber became an automatic pistol of smaller caliber. in a multi-caliber automatic pistol (Fig. 1).

Claims (3)

An automatic pistol caliber changeover plug consisting of a barrel protecting the extension portion and a filler corresponding to the barrel, characterized in that the barrel (1) is of a smaller caliber and the internal forming surfaces and cross sections of the barrel (5), the ejector (6), the impactor (7), the return spring (3) and the body (8) of the filler (4) are formed in accordance with the caliber of the barrel (1). 2. Automatic pistol caliber changeover plug according to claim 1, which is used to change the Makarov pistol caliber from 9x18 mm and 380 ACP to a caliber capable of firing a 221 R. cartridge. Use of a attachment according to claim 1, wherein the single-caliber automatic pistol is converted to multi-caliber by replacing the barrel (1), the barrel (5), the ejector (6), the impactor (7), the return spring (3) and the body ( 8) the filler (4).