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Posted: 9/11/2003 4:59:25 PM EDT
I have owned an AR-15 for years and I have always wondered about this . If I bought a new upper would a new bolt or my used bolt simply drop in ? Would headspacing need to be checked?
Link Posted: 9/11/2003 5:15:22 PM EDT
First, welcome to the board! Second, it would not be a bad idea to check the headspace. For me, I have a dedicated bolt to each upper that I own. I have however, used different bolts with different uppers without problems. I have problems using well worn parts against new ones though. Better safe than sorry IMHO. MM419
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