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9/19/2017 7:27:10 PM
Posted: 4/8/2006 7:21:14 AM EDT
So my new build was having a Mag problem. I have new heavy springs in my mags and if I load more than 10 rds in a 30rd mag it will not feed correctly. I was testing it this morning with 1 round in a mag to see if it was indeed the mag. So I released the bolt from the rear locked position and it picked up the round fed it into the chamber and the bolt locked closed. When I pulled the charging handle to extraxt the round from the chamber all worked fine. I picked up the round to examine it and noticed a very small indentation in the center of the primer. I did not get a slam fire but it may have been close. So my question is this. Is it normal for the firing pin to slam foreward and make contact with the chambered round when the bolt slams shut, or do I have a problem.
Link Posted: 4/8/2006 7:31:13 AM EDT
its perfectly normal. The AR-15 does not have a firing pin spring so the momentum of the bolt causes it to put a small dent i the primer
Link Posted: 4/8/2006 7:39:21 AM EDT
Thats what I thought. But as I am no expert with any single firearm I felt I should ask the question. Thanks for the reply.
Link Posted: 4/8/2006 5:10:53 PM EDT
so that kinda scares me. is the momentum enough to ignite the primer ?
Link Posted: 4/8/2006 8:19:50 PM EDT
No its not. It did not fire but it did leave a very small indentation.

I am going to the range tomarrow so I will test it thouroughly.
Link Posted: 4/9/2006 2:55:53 PM EDT

Originally Posted By new_master:
so that kinda scares me. is the momentum enough to ignite the primer ?

I have never had a Slam Fire on either of my AR's.
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