Matches 1 - 50 out of 88 1 2 >
Match Document Document Title
7627974 Bridged extractor spring for firearms  
New and unique improvements of prior known M4/M16 firearms are disclosed that comprise (A) a bolt which, in addition to all of the normal M4/M16 features is configured or reconfigured to accept a...
6978709 Breech device for bolt action firearms  
A breech device for bolt-action firearms includes a breech body reciprocating in the receiver and rotatable into locking position. In its front part, the breech body has locking lugs located in...
6609319 Bolt assemblies for firearms  
New and improved bolt assemblies for M4/M16 firearms capable of firing a remarkably greater number of rounds than previously available M4/M16 firearms are, disclosed that have right and left...
6564491 Firearm bolt assembly  
An elastic sleeve having a longitudinal slit is positioned between a bolt head and bolt carrier. The sleeve is inserted into an annular space in the bolt carrier when the sleeve is radially...
6536150 Automatic firearm with a moving bolt assembly with locking projections  
The bolt assembly includes a bolt head having a locked position and an unlocked position. The bolt head also has a periphery and an even number of arrangement sites located on the periphery. The...
6393961 Straight-pull breechblock with rotating boss locking mechanism for repeating weapons  
Straight-pull breechblock ( 20 ) with rotating-boss locking mechanism for repeating weapons, having a breechblock head ( 27 ) which is guided in a longitudinally and rotationally movable manner in...
6240670 Locking mechanism for firearms  
A locking mechanism for use in a wide variety of firearms to assist in securing the firearm from unauthorized use, the locking mechanism being rotatable between an unlocked position where it allows...
6182389 Bolt assembly for a firearm  
An improved bolt carrier for a firearm is provided that improves the overall reliability and performance of the firearm bolt assembly. The bolt carrier includes a bolt with a body having a number...
6112636 Gas-operated pistol  
A gas-operated pistol which comprises a frame having a handgrip and adapted to receive a magazine. A slide is mounted for alternating longitudinal movement along the frame. A barrel is provided...
6044748 Breech bolt assembly for a firearm  
Reliability of a multi-lug breech bolt is improved by modifying the bearing relationship between the bolt lugs and the matching lugs within a gun receiver. This procedure is applied to a gun that...
5886281 Breech block control for firearm for projectiles  
The invention concerns a firearm for receiving and firing a projectile. The firearm includes an integral casing having a barrel and a breech block receiving area to the rear of the barrel. A breech...
5448940 Gas-operated M16 pistol  
A modified M16 pistol capable of firing rifle cartridges therein in automatic or semi-automatic mode, which pistol is based upon modified M16 upper and lower assemblies, with a pistol barrel, an...
5351598 Gas-operated rifle system  
An M16 type rifle is disclosed having a gas piston assembly with a relatively large piston area and sufficient stroke to actuate the M16 bolt carrier assembly in order to allow the M16 rifle to be...
5117735 Machine gun with belt and magazine feed  
A dual feed light machine gun comprises a barrel, a receiver, a cartridge lt feed mechanism assembly provided on top of the receiver, a magazine socket positioned at the bottom side of the receiver...
4982649 Straight-action breech block system  
A tubular automatic weapon includes a barrel having a rear terminal portion defining a chamber, and a breech block having a breech block axis and being arranged for movement in axial alignment with...
4930399 High volume automatic and semi-automatic firearm  
This invention relates to a shotgun which has low felt recoil, a reliable loading of blunt nosed shells and which can fire a high number of rounds per minute. More particularly, this invention...
4920855 Bolt assembly for self-loading gun  
A bolt assembly (1) for a self loading rifle comprises a rotating bolt (2) mounted in a bolt carrier (3), the bolt being provided with locking teeth (6) which, in use, interengage with teeth (7) on...
4867040 Self-unlocking device for recoiling bolt carrier and barrel in a semi-automatic rifle  
A semi-automatic rifle including a recoiling barrel adapted to carry rearward the elongated bolt carrier containing the bolt for compressing the recoil spring, and a self-unlocking device including...
4765224 Automatic rifle gas system  
An M16-type automatic rifle is provided with an improved gas operating system. The tube extending forwardly from the bolt carrier key is of such length that it permanently mates with the aftwardly...
4704945 Controlled percussion device for automatic weapon  
The field of the invention is that of percussion devices used in automatic weapons. The invention consists of integrating the firing pin 12 with carrier piece 1 during the locking phase and then...
4655118 Arrangement for locking a breechblock head at the rear end of a weapon barrel  
It has been shown that at high firing rates or cadences, especially in externally powered firing weapons like Gatling guns, the rebound of the breechblock head during its locking at the rear end of...
4619184 Gas actuated pistol  
A fully gas operated pistol includes a frame unit, a barrel unit, a bolt carrier unit slidably supported on the frame unit and a spring which urges the bolt carrier unit into a forward, bolting...
H000144 Weapon trigger and sear mechanism  
A firing mechanism for a weapon having a receiver with a chamber for a caidge comprises a bolt and piston which are separately movable toward and away from the chamber and which are engaged with...
4604942 Bolt assembly with a rotating locking bolt head and a floating bolt element for automatic firearms  
A bolt assembly for an automatic firearm which operates using kinetic recoil energy that includes a floating bolt element, a rotatable locking bolt head and a return spring interposed between them,...
4563937 Gas actuated pistol  
A fully gas actuated pistol comprising a frame assembly adapted to fixedly receive a barrel assembly and slidably receive a bolt carrier assembly is disclosed. The barrel assembly is supported and...
4550641 Safety apparatus in externally powered firing weapon  
In weapons in the nature of a Gatling gun the danger exists with an ignition delay or hangfire that the cartridge still is ignited after the positively reciprocated breechblock has been unlocked....
4502367 Firearms bolt carrier assembly  
A bolt carrier assembly has a housing (300) for supporting a bolt (317) and a P cross-sectionally shaped member (301) having the longer side of the P-shape secured to the housing, the P-shaped...
4481858 Single barrel externally powered gun  
A single barrel externally powered gun includes a feed mechanism, a bolt assembly, a bolt control assembly and a power transmission system. The bolt control assembly is in the form of a chain drive...
4475438 Gas operated, automatic or semi-automatic guns  
A gas operated gun having a receiver (1) including a rear wall (100) at one end and a barrel (10) at the other end and a bolt carrier assembly (3) reciprocal within the receiver is arranged to...
4418607 Single barrel externally powdered gun  
A single barrel externally powered gun includes a feed mechanism, a bolt assembly, a bolt control assembly and a power transmission system. The bolt control assembly is in the form of a chain drive...
4398448 Buffered bolt assembly  
A buffered bolt assembly is disclosed for use in an automatic weapon. A b is received in a sleeve on a bolt carrier and is movable therein both axially and rotationally. One or more cam pins on the...
4389919 Firing pin block for firearm with a rotary breech bolt  
A firing pin block for a firearm of the type having a rotary breech bolt, a reciprocating bolt carrier, complementary locking lugs formed on the bolt and barrel to releasably secure them together,...
4358986 Rifle bolt assemblies  
A rifle having a body comprised of hingedly interconnected lower and upper receivers, a trigger and hammer assembly mounted in the lower receiver, a barrel extending from one end of the upper...
4329907 Gun bolt for high rate of fire revolving battery guns  
A feature of this invention is the provision of a gun bolt for a Gatling type gun having a carriage with a head journaled therein and a firing pin journaled in said head together with a cocking pin...
4311082 General purpose automatic weapon system  
There is disclosed a gas operated, fully automatic weapon system with a d feed mechanism having a long recoil, soft cycle operation. The automatic weapon system consists of six groups or...
4279191 Firearms  
An arrangement in firearms having a barrel and a bolt. The bolt is provided with means mounting the bolt for axial displacement and rotation on the outside of the barrel. A carrier displaceably...
4246830 Firing pin  
A firing pin for a firearm, more particularly for a firearm provided with a gas-operated bolt and bolt-carrier, the firing pin being disposed slidably in a longitudinal bore in the bolt. The firing...
4191089 Breech-closing mechanism for automatic rifle  
A breech-closing mechanism for an automatic rifle having a breech chamber and a first locking and stop device comprises a longitudinally movable slide formed with a cam slot, a second locking...
4167888 Automatic firearms with external motor  
This disclosure relates to an automatic firearms having a rotatable drum with helical grooves therein so arranged as to cause a follower guided by said grooves to reciprocate at a speed...
4164890 Liquid propellant modular gun incorporating dual cam operation and internal water cooling  
A liquid propellant modular gun has a slim profile and is constructed for wide latitude in gun cluster configuration. The modular gun has a stationary barrel and is externally driven and cam...
4154142 Externally powered carrier  
An externally powered carrier for an automatic weapon wherein rotary movement of an electric motor is translated into fore and aft movement of the carrier by means of an eccentrically positioned...
4095507 Combat firearm  
This invention relates to firearms of the type disclosed in my prior U.S. Pat. No. 3,424,053, granted Jan. 28, 1969, in which the principal parts such as actuating sleeve, receiver, frame and...
4022105 Automatic weapon firing mechanism  
An automatic weapon firing mechanism consisting of a slideably movable bolt arrier with cam slots cooperating with pins on the bolt and firing pin for rotating the bolt to lock it in battery...
4020741 Firearms  
A firearm includes a housing having a detonation chamber and a projectile-discharge barrel. A displaceable piston is mounted at the discharge end of the barrel and is arranged to be acted upon and...
3999461 Modular lightweight squad automatic weapon system  
A lightweight one man portable automatic gas-operated weapon system for intry use having symmetrical forces applied to recoiling parts by use of two parallel gas pressure actuated rods acting in...
3996684 Bolt latch  
A bolt latch for use in a firearm having a rotary locking system in which the latch locks the rotational movement of the bolt at all times during the cycle of operations of the gun except during...
3990347 Firearms having a bolt mounted for longitudinal and rotational movement  
A firearm includes a housing having a detonation chamber and a projectile-discharge barrel. A displaceable piston is mounted at the discharge end of the barrel and is arranged to be acted upon and...
3988964 Gas operated firearm with metering adjustment  
A gas operated firearm capable of at least semi-automatic operation, the firearm including a receiver having a barrel connected thereto, the barrel including a bore with a plurality of radially...
3960053 Automatic firearm having anti-bounce sear  
A belt-fed, gas-operated, air cooled automatic firearm having a novel mechanism for transferring link-connected ammunition rounds from a novel ammunition magazine to a feed position in an automatic...
3955470 Bolt operating and locking mechanism for closed breech rocket gun  
A closed breech rocket gun has a tubular bolt with an outwardly extending lug thereon for locking the bolt in its forwardly projected position as the lug is shifted into engagement with an abutment...
Matches 1 - 50 out of 88 1 2 >