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gunuserfixer · May 23, 2010, 11:18 AM

Anybody know what the mil-spec and/or optimum firing pin

protrusion is on a AR-15/M-16 in 5.45x45/.223 Rem. My new Stag Arms mod. 6L checks @ .026. It's obviously adequate as the rifle was test fired by mfg. ; but is it @ optimum protrusion ?

May 23, 2010, 11:18 AM	#1
gunuserfixer Junior Member Join Date: May 16, 2010 Location: minnesota Posts: 10	AR firing pin protrusion Anybody know what the mil-spec and/or optimum firing pin protrusion is on a AR-15/M-16 in 5.45x45/.223 Rem. My new Stag Arms mod. 6L checks @ .026. It's obviously adequate as the rifle was test fired by mfg. ; but is it @ optimum protrusion ? Last edited by gunuserfixer; May 23, 2010 at 11:35 AM.