Adjustable gas block

Abstract

Embodiments of adjustable gas block devices and methods of using the same are described. In one embodiment, an adjustable gas block device includes a gas block to communicate gas from a gas port in a barrel to a gas tube. The adjustable gas block may also include an orifice ring to select one of a plurality of preset gas flow settings for controlling the flow of gas between the barrel and the gas tube. Additionally, the adjustable gas block may include a spring ring to retain the orifice ring setting.

1 . An apparatus, comprising:
 a gas block to communicate gas from a gas port in a barrel to a gas tube;   an orifice ring to select one of a plurality of preset gas flow settings for controlling the flow of gas between the barrel and the gas tube; and   a spring ring to retain the orifice ring setting.   
     
     
         2 . The apparatus of  claim 1 , wherein the orifice ring further comprises a plurality of adjusting detents for adjusting a setting of the orifice ring. 
     
     
         3 . The apparatus of  claim 2 , wherein the plurality of adjusting detents are configured to be adjustable by hand. 
     
     
         4 . The apparatus of  claim 2 , wherein the plurality of adjustable detents are configured to be adjusted by a tip of a bullet. 
     
     
         5 . The apparatus of  claim 1 , further comprising an accessory mounting system coupled to the gas block. 
     
     
         6 . The apparatus of  claim 1 , wherein the spring ring comprises one or more spring ring protrusions configured to retain the spring ring in place relative to the gas block. 
     
     
         7 . The apparatus of  claim 6 , wherein the gas block comprises one or more notches configured to receive the spring ring protrusion. 
     
     
         8 . The apparatus of  claim 1 , wherein the orifice ring further comprises a plurality of orifice ring detents configured to retain the orifice ring in a selected position relative to the gas block. 
     
     
         9 . A method, comprising:
 adjusting an orifice ring coupled to a gas block to one of a plurality of preset gas flow settings for controlling flow of gas between a gas port in a barrel and a gas tube; and retaining the orifice ring setting with a spring ring.   
     
     
         10 . The method of  claim 9 , wherein adjusting the orifice ring further comprises rotating the orifice ring around a longitudinal axis defined by a length of the barrel. 
     
     
         11 . The method of  claim 10 , wherein rotating the orifice ring is performed by inserting a tip of a bullet cartridge into one of a plurality of adjusting detents in the orifice ring and applying an rotational force to the orifice ring. 
     
     
         12 . The method of  claim 9 , wherein the orifice ring is adjustable by hand.