Abstract

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.

IPC Classes  ?

• F41A 21/48 - Barrel mounting means, e.g. releasable mountings for replaceable barrels
• F41A 5/26 - Arrangements or systems for bleeding the gas from the barrel
• F41A 9/29 - Feeding of belted ammunition
• F41A 25/12 - Spring-operated systems using coil springs
• F41A 3/78 - Bolt buffer or recuperator means
• F41A 5/02 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock recoil-operated
• F41A 5/18 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
• F41A 15/14 - Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamberCartridge 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
• F41A 5/34 - Energy accumulator systems, i.e. systems for opening the breech-block by energy accumulated during barrel or gas piston recoil with spring accumulators
• F41A 3/94 - Fluid buffers in combination with spring buffers
• F41A 5/08 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock recoil-operated having an accelerator lever acting on the breech-block or bolt during the opening movement

Abstract

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.

IPC Classes  ?

• F41A 5/02 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock recoil-operated
• F41A 15/14 - Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamberCartridge 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
• F41A 3/78 - Bolt buffer or recuperator means
• F41A 5/18 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
• F41A 5/26 - Arrangements or systems for bleeding the gas from the barrel
• F41A 9/29 - Feeding of belted ammunition
• F41A 21/48 - Barrel mounting means, e.g. releasable mountings for replaceable barrels
• F41A 25/12 - Spring-operated systems using coil springs
• F41A 5/34 - Energy accumulator systems, i.e. systems for opening the breech-block by energy accumulated during barrel or gas piston recoil with spring accumulators

Abstract

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.

IPC Classes  ?

• F41A 5/18 - Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
• F41A 21/48 - Barrel mounting means, e.g. releasable mountings for replaceable barrels
• F41A 9/00 - Feeding or loading of ammunitionMagazinesGuiding means for the extracting of cartridges

Abstract

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

IPC Classes  ?

• F41A 19/31 - Sear arrangements therefor