Power Custom Gas Ring Shim for Ruger Single Action 10PK

These 0.004" thick shims are used to remove cylinder endshake in Ruger single action revolvers with a base pin smaller than 0.260" and a gas ring 0.380" or larger. Also fits 1st, 2nd, and 3rd generation Colt single actions and clones. Stainless steel pack of 10.