Posted: 1/23/2008 10:43:22 AM EDT
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When you put a new barrel on do you always replace the bolt? Carrier key? Thanks! |
I don't either but the old bolt must head pace not accepting the no-go gage. This has never been a problem but I always check the H.S. to be safe! I also look for a burned bolt face from loose primers, firing pin hole diameter because pierced primers and just how badly corroded the rear of the bolt is just behind the gas rings. Most AR owners never clean the carbon off and I have seen this area so bad that the gas rings were ready to come off! Any of the above conditions, a new bolt is in order. Carrier key, never changed any unless it were damaged. One part I like to change with every new barrel is the cam pin.  Dave McGrath |