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US20140290472A1 - Mechanism for firearms and its working method - Google Patents

Mechanism for firearms and its working method Download PDF

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Publication number
US20140290472A1
US20140290472A1 US13/925,860 US201313925860A US2014290472A1 US 20140290472 A1 US20140290472 A1 US 20140290472A1 US 201313925860 A US201313925860 A US 201313925860A US 2014290472 A1 US2014290472 A1 US 2014290472A1
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US
United States
Prior art keywords
round
barrel
upper body
pin
firing
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
Application number
US13/925,860
Inventor
Latif Aral Alis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SARSILMAZ SILAH SANAYI AS
Original Assignee
SARSILMAZ SILAH SANAYI AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SARSILMAZ SILAH SANAYI AS filed Critical SARSILMAZ SILAH SANAYI AS
Publication of US20140290472A1 publication Critical patent/US20140290472A1/en
Abandoned legal-status Critical Current

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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
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/01—Feeding of unbelted ammunition
    • F41A9/06—Feeding of unbelted ammunition using cyclically moving conveyors, i.e. conveyors having ammunition pusher or carrier elements which are emptied or disengaged from the ammunition during the return stroke
    • 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
    • F41A15/00—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun
    • F41A15/12—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns
    • F41A15/14—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns the ejector being mounted on or within the bolt; Extractors per se
    • 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
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F41A19/29—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension
    • F41A19/30—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension in bolt-action guns
    • F41A19/33—Arrangements for the selection of automatic or semi-automatic fire
    • 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

Definitions

  • the invention is a monoblock submachine gun part that is housed within the upper body, that pushes the round in the magazine into the shell chamber, that houses the pin system which fires the round in the shell chamber by triggering the explosion of its capsule, that pulls the empty shell in the shell chamber with the lug on it, and that winds the cock which has the function of hitting the pin for a second shot as it moves back due to the power of the recoil.
  • the patent titled “Firing Device” with the application number “2008/09125” can be given as an example for the prior art.
  • the invention comprises of the necessary devices to carry the round as a base to the body support piece in the magazine and in front of the barrel entry.
  • the invention referred to here as an example is about a weapon that contains a firing mechanism at the barrel entry.
  • the mechanism section is composed of several pieces that are combined.
  • the mechanism is present as a monoblock, unlike the invention referred to as an example.
  • this mechanism houses the pin and the pin housing which have different diameters.
  • the front profile of the mechanism is arranged such that it would not rub against the side walls of the magazine and such that it would get into the barrel as it pushes the round into the shell chamber of the barrel.
  • the invention that is referred to as an example is completely different from the present invention.
  • the present invention is about a monoblock firing mechanism that eliminates all of the disadvantages mentioned above and that cocks the weapon for the firing of a second round.
  • the present invention is about a mechanism that is part of the structure of a submachine gun which fires 9 ⁇ 19 mm caliber rounds and which can be used as an assault weapon, and its mode of operation.
  • FIG. 1 Frontal, perspective view of the mechanism that is the subject matter of the application.
  • FIG. 2 View of the mechanism that is the subject matter of the application from below.
  • the ideal embodiment of the submachine gun that includes the mechanism which is the subject matter of the invention can be composed of an upper body, a buffer, a buffer spring that is positioned such that it circumvents the said buffer, a barrel to which the mechanism is directly connected to, a lower body that the upper body is connected to, a magazine that is attached to the lower body, a magazine lock that locks the magazine in place when it is attached and that allows for the detachment of the magazine, a fixed ejector that ejects the live round if the round was not fired or the empty shell if the round was fired, an ejection port through which the said live round or the empty shell is ejected from the submachine gun and a handle that is located on the lower body, a barrel round chamber; a pin system that fires the round by triggering the explosion of the capsule of the round in the round chamber; and a cock which has the function of hitting the pin.
  • the mechanism is connected to the said upper body and has at least one winding arm ( 1 ) that is integrated to the mechanism.
  • the barrel is directly connected to the mechanism.
  • the mechanism that is the subject matter of the invention is a submachine gun part that pushes the round in the magazine into the shell chamber, that houses the pin system which fires the round in the shell chamber by triggering the explosion of its capsule, that pulls the empty shell in the shell chamber with the lug on it, and that winds the cock which has the function of hitting the pin for a second shot as it moves back due to the power of the recoil.
  • At least one winding arm ( 1 ) that is integrated to the mechanism, at least one front profile ( 2 ) of the mechanism that pushes the round in the magazine into the shell chamber, at least one pin housing with varying diameters which opens into the mechanism, at least one pin and spring ( 3 ) which are placed in the said pin housing, at least one ejection window through which the empty shell is ejected after the firing of the round, channels ( 4 ) that prevent the mechanism from scuffing the magazine walls and the neck portion of the fixed ejector as the mechanism moves forward and backward along the barrel's axis, side ejections ( 5 ) built along the length of the mechanism that decrease overheating by decreasing the friction surface as the mechanism works inside the upper body without deviating from the working axis.
  • the mechanism that is the subject matter of the invention does not have any added connecting pieces, such that the mechanism is manufactured as a monoblock part.
  • the winding arm ( 1 ) on the mechanism allows the mechanism to be wound by the use of this winding arm. In addition, it prevents the mechanism from rolling around its axis inside the upper body enclosure.
  • the mechanism is housed within the upper body.
  • a winding arm that is connected to the upper body which is situated behind the mechanism and hence behind the upper body is pulled backwards, the upper body gets in contact with the winding lug ( 1 ) on the mechanism and pulls the mechanism along with itself thereby compressing the absorber buffer coil spring that is behind the mechanism.
  • the mechanism that is the subject matter of the application moves forward under the influence of the coil spring. Due to the special rim structure of the mechanism, the round in the magazine is pushed into the barrel round chamber.
  • the rim portion of the mechanism or, stated differently, its front profile does not brush against the side walls of the magazine.
  • the front profile of the mechanism ( 2 ) gets into the barrel as it pushes the round in front of it into the barrel round chamber.
  • the mechanism houses the pin and the pin coil spring ( 3 ) which are placed in the pin housing that have carvings of different diameters.
  • the capsule of the round that is in the round chamber is fired to be exploded by the said pin.
  • the lug on the mechanism that travels back due to the explosion pulls the empty shell backwards.
  • the empty shell that travels backwards in a straight line along the barrel's axis changes direction of movement and is ejected out through the ejection window when its back side hits the fixed ejector under the pulling force exerted by the lug.
  • channels ( 4 ) carved on the lower surface of the mechanism which also constitute the frontal profile of the mechanism ( 2 ), that prevent the magazine walls and the fixed ejector from scraping the mechanism as the mechanism travels forward and backward along the barrel axis.
  • side ejections ( 5 ) that are placed along the length of the mechanism. Said side ejections ( 5 ) provide the operation of the mechanism within the upper body without deviating from the axis. Further, side ejections ( 5 ) decrease friction surfaces. Fewer friction surfaces lead to a decrease in heat caused by friction.
  • this invention is about an enhanced firing system in firearms and the operating mechanism of this system.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)

Abstract

The invention is a monoblock submachine gun part that is housed within the upper body, that pushes the round in the magazine into the shell chamber, that houses the pin system which fires the round in the shell chamber by triggering the explosion of its capsule, that pulls the empty shell in the shell chamber with the lug on it, and that winds the cock which has the function of hitting the pin for a second shot as it moves back due to the power of the recoil.

Description

    CROSS REFERENCE
  • This application claims the benefit of the application TR 2013-03993 filed on 2 Apr. 2013 at the Turkish Patent Office.
    • FIELD OF THE INVENTION
  • The invention is a monoblock submachine gun part that is housed within the upper body, that pushes the round in the magazine into the shell chamber, that houses the pin system which fires the round in the shell chamber by triggering the explosion of its capsule, that pulls the empty shell in the shell chamber with the lug on it, and that winds the cock which has the function of hitting the pin for a second shot as it moves back due to the power of the recoil.
    • BACKGROUND
  • Various mechanisms are developed that are related to the firing of firearms with ease, and their self-winding to fire a second round, after firing a round. However the parts that belong to this mechanism are connected to each other with connecting pieces. These mechanisms that are connected with connecting pieces deform over time. In prior art, there exists no part that is manufactured as monoblock to solve this problem.
  • The patent titled “Firing Device” with the application number “2008/09125” can be given as an example for the prior art. The invention comprises of the necessary devices to carry the round as a base to the body support piece in the magazine and in front of the barrel entry.
  • The invention referred to here as an example is about a weapon that contains a firing mechanism at the barrel entry. As can be understood from the figures of the said invention, the mechanism section is composed of several pieces that are combined.
  • In this application, however, the mechanism is present as a monoblock, unlike the invention referred to as an example. In addition, this mechanism houses the pin and the pin housing which have different diameters. Further, the front profile of the mechanism is arranged such that it would not rub against the side walls of the magazine and such that it would get into the barrel as it pushes the round into the shell chamber of the barrel. In addition, there is no additional apparatus that connects the mechanism with the barrel. As a result, the invention that is referred to as an example is completely different from the present invention.
  • The present invention is about a monoblock firing mechanism that eliminates all of the disadvantages mentioned above and that cocks the weapon for the firing of a second round.
    • SUMMARY OF THE INVENTION
  • The present invention is about a mechanism that is part of the structure of a submachine gun which fires 9×19 mm caliber rounds and which can be used as an assault weapon, and its mode of operation.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1: Frontal, perspective view of the mechanism that is the subject matter of the application.
  • FIG. 2: View of the mechanism that is the subject matter of the application from below.
    •  REFERENCES
    • 1. winding arm
    • 2. frontal profile of the mechanism
    • 3. pin and coil spring
    • 4. channel
    • 5. side ejection port
    DETAILED DESCRIPTION OF THE INVENTION
  • The ideal embodiment of the submachine gun that includes the mechanism which is the subject matter of the invention can be composed of an upper body, a buffer, a buffer spring that is positioned such that it circumvents the said buffer, a barrel to which the mechanism is directly connected to, a lower body that the upper body is connected to, a magazine that is attached to the lower body, a magazine lock that locks the magazine in place when it is attached and that allows for the detachment of the magazine, a fixed ejector that ejects the live round if the round was not fired or the empty shell if the round was fired, an ejection port through which the said live round or the empty shell is ejected from the submachine gun and a handle that is located on the lower body, a barrel round chamber; a pin system that fires the round by triggering the explosion of the capsule of the round in the round chamber; and a cock which has the function of hitting the pin.
  • The mechanism is connected to the said upper body and has at least one winding arm (1) that is integrated to the mechanism. The barrel is directly connected to the mechanism.
  • The mechanism that is the subject matter of the invention is a submachine gun part that pushes the round in the magazine into the shell chamber, that houses the pin system which fires the round in the shell chamber by triggering the explosion of its capsule, that pulls the empty shell in the shell chamber with the lug on it, and that winds the cock which has the function of hitting the pin for a second shot as it moves back due to the power of the recoil.
  • The mechanism that is the subject matter of the invention is detailed as follows:
  • It is characterized by having at least one winding arm (1) that is integrated to the mechanism, at least one front profile (2) of the mechanism that pushes the round in the magazine into the shell chamber, at least one pin housing with varying diameters which opens into the mechanism, at least one pin and spring (3) which are placed in the said pin housing, at least one ejection window through which the empty shell is ejected after the firing of the round, channels (4) that prevent the mechanism from scuffing the magazine walls and the neck portion of the fixed ejector as the mechanism moves forward and backward along the barrel's axis, side ejections (5) built along the length of the mechanism that decrease overheating by decreasing the friction surface as the mechanism works inside the upper body without deviating from the working axis.
  • The mechanism that is the subject matter of the invention does not have any added connecting pieces, such that the mechanism is manufactured as a monoblock part.
  • The winding arm (1) on the mechanism allows the mechanism to be wound by the use of this winding arm. In addition, it prevents the mechanism from rolling around its axis inside the upper body enclosure.
  • The mechanism is housed within the upper body. When a winding arm that is connected to the upper body which is situated behind the mechanism and hence behind the upper body is pulled backwards, the upper body gets in contact with the winding lug (1) on the mechanism and pulls the mechanism along with itself thereby compressing the absorber buffer coil spring that is behind the mechanism. When the pulling force applied to the winding arm is released, the mechanism that is the subject matter of the application moves forward under the influence of the coil spring. Due to the special rim structure of the mechanism, the round in the magazine is pushed into the barrel round chamber. The rim portion of the mechanism or, stated differently, its front profile does not brush against the side walls of the magazine. In addition, the front profile of the mechanism (2) gets into the barrel as it pushes the round in front of it into the barrel round chamber.
  • The mechanism houses the pin and the pin coil spring (3) which are placed in the pin housing that have carvings of different diameters. The capsule of the round that is in the round chamber is fired to be exploded by the said pin. After the shot, the lug on the mechanism that travels back due to the explosion pulls the empty shell backwards. The empty shell that travels backwards in a straight line along the barrel's axis changes direction of movement and is ejected out through the ejection window when its back side hits the fixed ejector under the pulling force exerted by the lug.
  • There are channels (4) carved on the lower surface of the mechanism, which also constitute the frontal profile of the mechanism (2), that prevent the magazine walls and the fixed ejector from scraping the mechanism as the mechanism travels forward and backward along the barrel axis.
  • In addition to that, there are side ejections (5) that are placed along the length of the mechanism. Said side ejections (5) provide the operation of the mechanism within the upper body without deviating from the axis. Further, side ejections (5) decrease friction surfaces. Fewer friction surfaces lead to a decrease in heat caused by friction.
  • In sum, this invention is about an enhanced firing system in firearms and the operating mechanism of this system.

Claims (4)

I claim:
1. A mechanism for firearms comprising:
at least one frontal profile of the mechanism that directly enters into the barrel as it pushes the round from the magazine into the barrel round chamber wherein the mechanism manufactured as a monoblock part.
2. The mechanism of claim 1 further comprising:
at least one winding arm that is integrated to the mechanism at its top section and that allows the mechanism's forward and backward movement together with the upper body;
at least one pin housing with different diameters set in the mechanism;
at least one pin and coil spring placed inside the said pin housing, which fires the round;
at least one ejection window through which the empty shell is ejected after the firing of the round;
a plurality of channels that prevent the mechanism from scuffing the magazine walls and the neck portion of the fixed ejector as the mechanism moves forward and backward along the barrel's axis; and
side ejections built along the length of the mechanism that decrease overheating by decreasing the friction surface as the mechanism works inside the upper body without deviating from the working axis.
3. A method of the mechanism of claim 1 the method comprising:
the upper body's getting in contact with the winding lug on the mechanism and pulling the mechanism in the same direction of its movement when a winding arm that is connected to the upper body is pulled backwards;
compressing of the absorber buffer coil spring that is behind the mechanism, due to the movement of the mechanism;
moving forward under the influence of the coil spring, when the pulling force applied to the winding arm is released;
pushing of the round from the magazine into the barrel round chamber by the front profile of the mechanism;
firing of the round that is in the round chamber, and thus the firearm, by the pin of the mechanism;
moving backward due to the explosion after the round is fired;
pulling of the empty shell by the lug on the mechanism as the mechanism moves backward;
ejection of the empty shell that moves backward along the barrel axis through the ejection window by its changing direction due to its back hitting the fixed ejector;
getting ready for the firing of a new round.
4. A method of the mechanism of claim 2 the method comprising:
the upper body's getting in contact with the winding lug on the mechanism and pulling the mechanism in the same direction of its movement when a winding arm that is connected to the upper body is pulled backwards;
compressing of the absorber buffer coil spring that is behind the mechanism, due to the movement of the mechanism;
moving forward under the influence of the coil spring, when the pulling force applied to the winding arm is released;
pushing of the round from the magazine into the barrel round chamber by the front profile of the mechanism;
firing of the round that is in the round chamber, and thus the firearm, by the pin of the mechanism;
moving backward due to the explosion after the round is fired;
pulling of the empty shell by the lug on the mechanism as the mechanism moves backward;
ejection of the empty shell that moves backward along the barrel axis through the ejection window by its changing direction due to its back hitting the fixed ejector;
getting ready for the firing of a new round.
US13/925,860 2013-04-02 2013-06-25 Mechanism for firearms and its working method Abandoned US20140290472A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRTR2013-03993 2013-04-02
TR201303993 2013-04-02

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US20140290472A1 true US20140290472A1 (en) 2014-10-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140260943A1 (en) * 2013-03-18 2014-09-18 Sarsilmaz Silah Sanayi A.S. Submachine gun

Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1425808A (en) * 1920-12-02 1922-08-15 Auto Ordnance Corp Breech mechanism for guns
US3198076A (en) * 1963-03-22 1965-08-03 Rhoda Jeanne Stoner Convertible gun
US3253362A (en) * 1964-04-21 1966-05-31 Wilbur C Gitchell Bolt actions for rifles
US4553469A (en) * 1981-12-31 1985-11-19 Atchisson Maxwell G Low-recoil firearm with noncircular guide rod for angularly locating bolt carrier assembly
US4693170A (en) * 1984-08-08 1987-09-15 Atchisson Maxwell G Firing mechanism for firearm
US6293040B1 (en) * 1999-08-27 2001-09-25 Defense Procurement Manufacturing Services, Inc. Interchangeable weapon receiver for alternate ammunition
US6516700B1 (en) * 1997-06-05 2003-02-11 Otkrytoe Aktsionernoe Obschestvo“Izhmash” Automatic weapon
US20050223613A1 (en) * 2003-01-27 2005-10-13 Terrence Bender Gas operated action for auto-loading firearms
US7398723B1 (en) * 2003-04-25 2008-07-15 Blakley Brian A Trigger forward displacement system and method
US7444775B1 (en) * 2005-09-14 2008-11-04 Schuetz Robert C E Caliber convertible AR-15 upper receiver system
US7461581B2 (en) * 2006-07-24 2008-12-09 Lwrcinternational, Llc Self-cleaning gas operating system for a firearm
US7779741B2 (en) * 2007-11-29 2010-08-24 SA Ordnance LLC Semi-automatic firing closed bolt-type carbine anti-jamming cartridge loading system
US7849777B1 (en) * 2007-10-04 2010-12-14 Fabbrica D'armi Pietro Beretta S.P.A. Firearm with an improved breech bolt assembly
US20110094373A1 (en) * 2009-10-23 2011-04-28 Cassels Charles B Convertible gas piston conversion system
US20110168009A1 (en) * 2007-11-20 2011-07-14 Robb Eric P Semiautomatic Rifle with Downward Ejection
US8074556B2 (en) * 2006-05-17 2011-12-13 Heckler & Koch, Gmbh Locking systems for use with firearms
US8745911B2 (en) * 2011-11-17 2014-06-10 Jing Zheng Bolt assembly and bolt carrier assembly with switch mechanism for discharging spent casing from either side of firearm receiver without need of disassembling the firearm
US8782939B2 (en) * 2007-01-10 2014-07-22 Smith & Wesson Corp. Bolt action firearm and its method of assembly
US20140260943A1 (en) * 2013-03-18 2014-09-18 Sarsilmaz Silah Sanayi A.S. Submachine gun
US20140260946A1 (en) * 2013-03-15 2014-09-18 Lwrc International, Llc Firearm buffer system and buttstock assembly
US8844424B2 (en) * 2011-08-17 2014-09-30 Lwrc International Llc Bolt carrier and bolt for gas operated firearms

Patent Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1425808A (en) * 1920-12-02 1922-08-15 Auto Ordnance Corp Breech mechanism for guns
US3198076A (en) * 1963-03-22 1965-08-03 Rhoda Jeanne Stoner Convertible gun
US3253362A (en) * 1964-04-21 1966-05-31 Wilbur C Gitchell Bolt actions for rifles
US4553469A (en) * 1981-12-31 1985-11-19 Atchisson Maxwell G Low-recoil firearm with noncircular guide rod for angularly locating bolt carrier assembly
US4693170A (en) * 1984-08-08 1987-09-15 Atchisson Maxwell G Firing mechanism for firearm
US6516700B1 (en) * 1997-06-05 2003-02-11 Otkrytoe Aktsionernoe Obschestvo“Izhmash” Automatic weapon
US6293040B1 (en) * 1999-08-27 2001-09-25 Defense Procurement Manufacturing Services, Inc. Interchangeable weapon receiver for alternate ammunition
US20050223613A1 (en) * 2003-01-27 2005-10-13 Terrence Bender Gas operated action for auto-loading firearms
US7398723B1 (en) * 2003-04-25 2008-07-15 Blakley Brian A Trigger forward displacement system and method
US7444775B1 (en) * 2005-09-14 2008-11-04 Schuetz Robert C E Caliber convertible AR-15 upper receiver system
US8074556B2 (en) * 2006-05-17 2011-12-13 Heckler & Koch, Gmbh Locking systems for use with firearms
US7461581B2 (en) * 2006-07-24 2008-12-09 Lwrcinternational, Llc Self-cleaning gas operating system for a firearm
US8782939B2 (en) * 2007-01-10 2014-07-22 Smith & Wesson Corp. Bolt action firearm and its method of assembly
US7849777B1 (en) * 2007-10-04 2010-12-14 Fabbrica D'armi Pietro Beretta S.P.A. Firearm with an improved breech bolt assembly
US20110168009A1 (en) * 2007-11-20 2011-07-14 Robb Eric P Semiautomatic Rifle with Downward Ejection
US7779741B2 (en) * 2007-11-29 2010-08-24 SA Ordnance LLC Semi-automatic firing closed bolt-type carbine anti-jamming cartridge loading system
US20110094373A1 (en) * 2009-10-23 2011-04-28 Cassels Charles B Convertible gas piston conversion system
US8844424B2 (en) * 2011-08-17 2014-09-30 Lwrc International Llc Bolt carrier and bolt for gas operated firearms
US8745911B2 (en) * 2011-11-17 2014-06-10 Jing Zheng Bolt assembly and bolt carrier assembly with switch mechanism for discharging spent casing from either side of firearm receiver without need of disassembling the firearm
US20140260946A1 (en) * 2013-03-15 2014-09-18 Lwrc International, Llc Firearm buffer system and buttstock assembly
US20140260943A1 (en) * 2013-03-18 2014-09-18 Sarsilmaz Silah Sanayi A.S. Submachine gun

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140260943A1 (en) * 2013-03-18 2014-09-18 Sarsilmaz Silah Sanayi A.S. Submachine gun

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STCB Information on status: application discontinuation

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