Adjustable gas valve for firearm
Provided is an adjustable gas valve for use in a firearm gas block having a cylinder and piston. The valve includes valve body configured to associate with the cylinder and has an exhaust port. A regulator adjustably occludes between none and all of the exhaust port.
1 . An adjustable gas valve for use in a firearm gas block having a cylinder and piston in the gas block, the valve comprising:
a valve body configured to associate with the cylinder and having an exhaust port, the valve body including a plurality of inlet orifices rotatably alignable to selectively receive gas pressure flow from a barrel port;
a regulator that adjustably occludes between none and all of the exhaust port;
an internal diffuser stem configured to extend at least partially inside the valve body and having an open end directed toward the piston;
a plurality of radial exhaust outlets leading to an annular chamber positioned adjacent the exhaust port; and
an exhaust passageway operably connecting the open end with the radial exhaust outlets.
2 . The valve of claim 1 , wherein the regulator adjusts by rotation.
3 . The valve of claim 1 , further comprising a spring biased detent configured to hold the regulator in a selected position.
4 . The valve of claim 3 , wherein the detent is biased by a snap ring spring fitted in an annular groove.
5 . The valve of claim 3 , wherein the detent engages splines on another part.
6 . The valve of claim 5 , wherein the splines are on the valve body and the groove is on the regulator.
7 . The valve of claim 5 , wherein the splines are on the regulator and the groove is on the valve body.
8 . The valve of claim 1 , wherein the regulator is configured to occlude the exhaust port outside the valve body.
9 . The valve of claim 1 , wherein the regulator is configured to occlude the exhaust port inside the valve body.
10 . The valve of claim 1 , wherein the valve body includes a plurality of alignable inlet orifices rotatably positionable to vary gas pressure flow from the barrel port.
11 . The valve of claim 10 , wherein the valve body is further alignable to occlude gas pressure flow from the barrel port.