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HKFan9 · January 29, 2013, 12:07 AM

What make is the rifle.. or the upper for that matter. Some companys don't follow the mil-spec standard.

Smith and Wesson does it the opposite way. Others I am unsure of off the top of my head.

January 29, 2013, 12:07 AM	#4
HKFan9 Senior Member Join Date: May 3, 2008 Posts: 2,214	What make is the rifle.. or the upper for that matter. Some companys don't follow the mil-spec standard. Smith and Wesson does it the opposite way. Others I am unsure of off the top of my head.