What is gas piston?

Some articles on gas, gas piston, piston:

Saiga Semi-automatic Rifle - Design and Operation
... The Saiga uses the same type of gas system that the AK-47 rifle uses a gas piston ... This gas piston is pushed by the force of the gases from the firearm when a round is discharged, and it keeps powder residue and carbon from gumming up the action of ... This piston is located inside the gas tube ...
Walt Langendorfer
... He designed a gas piston system in an effort to convert the AR-15 (M16) rifle to a more reliable operating system than the standard direct impingement system ... More recently, the US Asymmetric Warfare Group purchased the Gas-OperatedHK 416, a M4/M16 type rifle made by Heckler Koch using the short stroke gas piston system after intensive tests ...
Comparison Of The AK-47 And M16 - Comparison of Characteristics - Reliability
... It is long-stroke gas operated, using the gas from the barrel to push a piston attached to the bolt carrier, thus operating the action ... The gas tube is fairly large and is visible above the barrel with ports or vents to allow the excess "dirty" gas to escape without affecting the action ... The M16 uses a direct impingement (DI) gas system, similar to normal gas operation in principle, but unique in operation ...
M4 Carbine - History - Improved M4
... the direct impingement system with a gas piston system ... are done comparing the direct impingement system to commercial gas piston operating system to find out and use the best available operating system in the US Army's improved M4A1 ... also to have open competition for the newly designed M4 bolt carrier and gas piston operation system, which will be fitted to the newly bought M4A1 carbines ...
Armalite AR-18 - Construction and Design
... Moreover, the gas piston operation of the AR-18 proved much more resistant to carbon fouling than the direct gas impingement system of the earlier AR-10 and AR-15 ... The AR-18's action was powered by a short-stroke gas piston above the barrel ... The gas piston was of 3-piece design to facilitate disassembly, with a hollow forward section with 4 radial gas vent holes fitting around a stainless steel ...

Famous quotes containing the word gas:

    A new father quickly learns that his child invariably comes to the bathroom at precisely the times when he’s in there, as if he needed company. The only way for this father to be certain of bathroom privacy is to shave at the gas station.
    Bill Cosby (20th century)