No gas rings needed in a piston AR, most likely it's a carrier drag if you see the upper wear. If that's an issue POF has a solution for it POF-USA .223 Roller Cam Pin:
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No gas rings needed in a piston AR, most likely it's a carrier drag if you see the upper wear. If that's an issue POF has a solution for it POF-USA .223 Roller Cam Pin:
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Last edited by Kaiser.Shooter; 11-25-2012 at 01:50.