General Dynamics Armament and Technical Products, Inc.

General Dynamics—ots. Inc.

General Dynamics Armament Systems, Inc.

David Steimke

Glenn Rossier

Parke R Warner

Douglas W Parker

Larry Hayes

Larry W Hayes

Victor Forrester

Douglas Parker

Glen Rossier

A weapon system is provided. The weapon system includes a receiver and an operating group. The operating group includes a barrel extension at least partially housed within the receiver and arranged to axially translate relative to the receiver; an operating rod (op-rod) assembly arranged to axially translate within the barrel extension; and a bolt assembly arranged to axially translate within the barrel extension. The system further includes a gas accelerator coupled to the barrel and the op-rod assembly; a buffer assembly including a self-centering spring and a hydraulic piston assembly having a first end coupled to the receiver and a second end coupled to the barrel extension; and a feeder coupled to the receiver and configured to provide the round to the operating group.

Quick release barrel attaching and detaching mechanism

A weapon system includes a receiver and an operating group with a barrel extension arranged to axially translate relative to the receiver. In the firing condition, the op-rod assembly and bolt assembly are driven by the drive spring such that the round is guided into the chamber and the op-rod assembly and bolt assembly are locked to the barrel extension and a forward momentum of the op-rod assembly is imparted to the operating group and the round is fired. A portion of an impulse stops the forward momentum of the operating group. In the recoil condition, the operating group is driven rearward by the remaining portion of the impulse, the gas accelerator imparts additional rearward momentum to the op-rod assembly and bolt assembly and stops rearward momentum of the barrel and barrel extension, and the op-rod assembly and the bolt assembly are stopped by the drive spring.

Weapon system with short recoil impulse averaging operating group

Short recoil impulse averaging weapon system

A linkless ammunition feed system for a firearm. The ammunition feed system has an ammunition container with a path for holding a plurality ammunition rounds in a single file manner and an exit for passing the ammunition rounds out of the container. A pusher is positioned in and adapted to freely slide through the ammunition path, the plurality of ammunition rounds being positioned between the exit and the pusher, the pusher adapted to push the ammunition toward the exit. The pusher is pulled through the ammunition path by a feed line connected to the pusher and extending through the ammunition path. A rotatable feed line spool collects the feed line at the container exit, and a feed sprocket rotates to move an ammunition round from the container exit to a firearm associated with the ammunition feed system.

Ammunition container and feed system

A recoil-operated, impulse averaging, air-cooled, magazine-fed, automatic weapon. An operating group of the weapon includes a chamber, a bolt, a barrel extension and one or more toggles. The recoil action of the weapon from firing a first round drives the toggles in a motion constrained by a cam way. The toggles then drive the chamber in a linear reciprocating motion ejecting a first round and over-riding the next round. An impulse averaging system controls the speed of the recoil.

Over riding chamber impulse average weapon

A weapon system is provided with a rotary lock bolt driven by a bimodal cam way.

Self-powered impulse averaging recoil operated machine gun with a rotary lock bolt driven by bimodal cams

An automatic projectile firing weapon and a related method for absorbing the recoil force of an automatic projectile firing weapon are disclosed. The weapon includes a barrel assembly that is slidably mounted in a receiver, biased by an operating spring, and engageable with a main sear. A gas operated bolt assembly is slidably mounted within the barrel assembly and is driven by a bolt spring. A trigger is provided to release the main sear and allow the operating spring to move the barrel assembly forwardly in the receiver. There is further provided a buffer connected between the receiver and the barrel assembly to dampen the velocity of the barrel assembly to ensure the barrel assembly is moving at a predetermined maximum velocity when a round is fired at a predetermined firing position. The recoil energy from the fired round is absorbed mainly by the forward motion of the barrel assembly and in part by the operating spring and buffer. In this manner, the peak recoil load to the receiver is minimized and the weapon operates at its actual firing rate from the first shot.

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Burlington, VT, United States of America

David Steimke