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9/22/2017 12:11:25 AM
Posted: 4/9/2006 2:49:56 PM EDT
If I get a new upper for my AR15, do I need a new bolt and carrier too? Or is it OK to just drop in the bolt and carrier I already have?
Link Posted: 4/9/2006 2:55:33 PM EDT
its best to keep the BCG w/ the origional bbl

h/w, USUALLY, there will be no problems using a used BCG w/ a new bbl or vice versa....

you can have the head spaced checked to be sure
Link Posted: 4/10/2006 12:24:07 AM EDT
Just use your old one and don't worry about it. As long as its a quality bolt within milspec and doesn't have a very high round count, you should be fine.
Link Posted: 4/10/2006 3:06:44 AM EDT
I've seen a lot of claims that the bolt should stay with the upper, but would like to see some proof to back that up. The MSG factory rep says he swaps them around without a problem.
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