gas port

gas port

[′gas ‚pȯrt]
(ordnance)
An opening for the passage of gas in the cylinder of a gas-operated automatic weapon to admit some of the propellant gases from the gun barrel.
Mentioned in ?
References in periodicals archive ?
The Department of Trade and Industry feels the gas port will be valuable from an energy policy standpoint.
You will need a long 1/8" drill bit to drill the gas port so that you have enough length to set the barrel up in a drill press and still have enough drill bit to drill through the barrel.
Moving peak pressure down the bore means we increase our gas port pressure, which increases our bolt speed.
It has a gas port in the barrel and another in the gas system.
The ultimate fix to excessive port pressure is relocating the gas port forward toward the muzzle.
The Department of Trade and Industry feels the gas port will be valuable from an energy policy perspective because of its potential contribution to national security of gas.
Pearl Crossing LNG Terminal LLC (Houston) has filed to obtain a license to construct, own and operate a deepwater natural gas port off the coast of Louisiana.
After the projectile passes through the gas port in the top of the barrel, some of the propellant gases are diverted into the gas cylinder where they expand and drive the short-stroke piston rearward, which in turn strikes the face of the bolt carrier.
The compressor station at Rembelszczyzna (with the Rembelszczyzna Gustorzyn gas pipeline) may become in the future an element of the planned North-South Energy Corridor, which would connect the LNG terminal in Swinoujscie with the planned gas port in Croatia (the so called Adria terminal) via countries of Central Europe (the Czech Republic, Slovakia, Hungary).
Remembering the "recycling" theory I took a good hard look at the M14 platform and figured that any attempt to recycle barrels for that gun would have to move the gas port rearward more than Mother Nature ever intended, perhaps making the whole notion untenable.
On the bottom of the barrel, ahead of the chamber, there is a gas port.