Disclosed is bolt carrier for a firearm wherein the bolt carrier has an adjustable gas flow feature to control the amount of gas used to cycle a bolt carrier group that the bolt carrier is located in. The adjustment of the gas flow can be used to regulate the gas flow as require by ...
the pressure is leached off via a gas port (small hole) in the barrel which pushes gas up into a gas block, the gas block reroutes the gas back down the gas tube and back into the BCG (bolt carrier group), that pressure presses on the bolt O-rings inside the carrier...
A gas spring device includes a pair of gas springs disposed parallel and adjacent one another. Each of the gas springs has a piston extendable in an opposite direction from the pist
A propellant gas energized firearm has a gas supply passage conducting propellant gas from a gas port of a firearm barrel to an actuating chamber of a bolt carrier and bolt group having an actuating chamber. A gas key member is mounted to the bolt carrier and defines a part of the gas ...
A propellant gas energized firearm has a gas supply passage conducting propellant gas from a gas port of a firearm barrel to an actuating chamber of a bolt carrier and bolt group having an actuating chamber. A gas key member is mounted to the bolt carrier and defines a part of the gas ...
A propellant gas energized firearm has a gas supply passage conducting propellant gas from a gas port of a firearm barrel to an actuating chamber of a bolt carrier and bolt group having an actuating chamber. A gas key member is mounted to the bolt carrier and defines a part of the gas ...
(or other appropriately sized) threaded recess is provided. Within the recess is provided a mating nylon set screw with an Allen hex head socket. The set screw and recess also have a small hole through the bolt to allow the carrier (conveyance) gas to purge the feed hopper at each dosing...
The adjustable gas key also includes an adjustment device operatively coupled to the adjustable gas key, wherein the adjustment device adjusts a size of the inner volume. The adjustable gas key is integral and unitary with a bolt carrier of the firearm, wherein adjustment of the size of the...
A propellant gas energized firearm has a gas supply passage conducting propellant gas from a gas port of a firearm barrel to an actuating chamber of a bolt carrier and bolt group having an actuating chamber. A gas key member is mounted to the bolt carrier and defines a part of the gas ...