Joined
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8,010 Posts
Looks like there is a reason why Stoner did not put a Piston in an AR. XCR is now king?
This is a very interesting read here:
http://www.ar15.com/forums/topic.html?b=3&f=118&t=430093&page=1
This is a very interesting read here:
http://www.ar15.com/forums/topic.html?b=3&f=118&t=430093&page=1