Gas block alignment fixture

Abstract

Provided is a fixture for holding a firearm gas block for mounting or removal of a gas tube. holding fixture. The fixture includes an elongated body having a mounting portion and a holding portion. The mounting portion is sized to correspond to and receive a bore of a gas block and includes at least one attachment feature for temporary securement of a gas block placed thereon against rotational and axial movement relative to the body.

What is claimed is: 
     
         1 . A gas block holding fixture, comprising:
 an elongated body having a mounting portion and a holding portion, the mounting portion sized to correspond to and receive a bore of a gas block, and the mounting portion including at least one attachment feature for temporary securement of a gas block placed thereon against rotational and axial movement relative to the body.   
     
     
         2 . The fixture of  claim 1 , wherein the attachment feature includes at least one dimple for receiving a gas block set screw. 
     
     
         3 . The fixture of  claim 2 , wherein the attachment feature includes a series of dimples axially spaced apart at differing intervals. 
     
     
         4 . The fixture of  claim 1 , wherein the attachment feature includes at least one transverse slot for receiving a gas block pin. 
     
     
         5 . The fixture of  claim 1 , wherein the holding portion includes at least one flat surface for clamping the fixture in a holding device. 
     
     
         6 . The fixture of  claim 5 , wherein the holding potion includes a plurality of corresponding pairs of flat surfaces. 
     
     
         7 . The fixture of  claim 6 , wherein the holding portion is octagonal in cross section. 
     
     
         8 . The fixture of  claim 1 , wherein the mounting portion is substantially round in cross section. 
     
     
         9 . The fixture of  claim 1 , wherein the mounting portion includes a first segment having a first size and a second segment having a different second size. 
     
     
         10 . The fixture of  claim 9 , wherein the first and second segments are substantially round in cross section. 
     
     
         11 . The fixture of  claim 10 , wherein the first segment corresponds to a 0.625″ barrel diameter and the second segment corresponds to a 0.750″ barrel diameter. 
     
     
         12 . The fixture of  claim 10 , wherein the first segment corresponds to a 0.875″ barrel diameter and the second segment corresponds to a 0.936″ barrel diameter.