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10/20/2017 1:01:18 AM
9/22/2017 12:11:25 AM
Posted: 9/24/2005 5:07:54 PM EDT
I'm considering keeping some spare parts on hand. How interchangeable are the parts in the upper assembly (e.g., bolt carrier, bolt carrier key, bolt assembly, firing pin)?

Thanks in advance.
Link Posted: 9/24/2005 5:14:04 PM EDT
Link Posted: 9/24/2005 5:17:21 PM EDT
[Last Edit: 9/24/2005 5:18:32 PM EDT by QUIB]
Pretty much everything is interchangeable, with the exception of bolts. Some guys do it, the military manuals warn against it, and I do not practice it. Unless you have the gauges for checking headspace.
New barrel=new bolt.
Link Posted: 9/24/2005 5:19:45 PM EDT
just get some head space guages and you should be set with everything including bolts
Link Posted: 9/24/2005 5:33:13 PM EDT
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