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Old June 8, 2010, 01:14 PM   #16
Join Date: May 25, 2010
Posts: 41
AR firing pin protrusion {[guf]gunuserfixer}

haven't checked this post in a while. good info. thanx I'm not "trying to fix something that's not broken" or worried or agonized. This my first AR and was just curious. I have since come across a dmnn. of .029. Don't remember where. I check firing pin protrusion with an adjustable gage and 0-1 OD micr. Brownells sells them but I made mine. I'm a retired tool maker. [which might explain my anal-retentiveness] guf
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