Patent ID: 8887616

Claim:
An auto regulating gas system for an auto loading firearm comprising: a gas block attached to a barrel of the firearm to redirect a volume of propellant gases, the gas block including a gas port for directing propellant gases received from a gas port of the barrel into the gas system to cycle the auto loading firearm; and a spring-loaded plunger assembly positioned within the gas block, the plunger assembly including a regulator plunger having a reduced flow orifice, a regulator bushing, a regulator spring, and a regulator cap, wherein the position of the regulator plunger within the gas block automatically controls an amount of gas that is allowed to enter the gas system; wherein mounting a muzzle device over the muzzle drives the regulator plunger rearward moving the reduced flow orifice over the gas port in the gas block to automatically reduce the volume of propellant gases directed into the gas system.