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Site News Could You Have Stopped This? Vegas Shooting Analysis with Attorneys on Retainer
1/19/2014 10:52:58 AM EDT
I was reading a thread about bolts and headspace, and the guys arguing were talking over my head.  Here is my question-is it generally safe to put a NEW bolt into a used AR if the bolt needs replaced for whatever reason?
1/19/2014 10:56:29 AM EDT
[#1]
I've done it in fairly new uppers with no problem.  I can't say about an upper with thousands of rounds through it though.
1/19/2014 10:56:50 AM EDT
[#2]
Quoted:
I was reading a thread about bolts and headspace, and the guys arguing were talking over my head.  Here is my question-is it generally safe to put a NEW bolt into a used AR if the bolt needs replaced for whatever reason?
View Quote


IMO/E check it anyways. It doesn't hurt. I'm required to at work, and once I did get a bad bolt (brand new)
1/19/2014 10:56:56 AM EDT
[#3]
Generally , yes.
1/19/2014 10:57:06 AM EDT
[#4]


Need to check with headspace gauges to be sure.
1/19/2014 10:58:34 AM EDT
[#5]
Quote History
Quoted:
Generally , yes.
View Quote


Best practice is to use go/no go headspace gauge.

1/19/2014 11:01:15 AM EDT
[#6]
A new bolt carrier with the old bolt isn't a problem is it-ie changing out a semi auto carrier for a fa carrier...?
1/19/2014 11:01:56 AM EDT
[#7]
Quoted:
I was reading a thread about bolts and head space, and the guys arguing were talking over my head.  Here is my question-is it generally safe to put a NEW bolt into a used AR if the bolt needs replaced for whatever reason?
View Quote
Yes if you check the head spacing and it is OK. While bolts and barrels are made to close tolerance they are made by man. You may never find a bolt/barrel combination that has excessive head space, it can possible happen, and the results can be life changing or even life ending.  
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