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williamN
17 June 2009, 16:43
If the upper was properly headspaced do you need to have the headspace adjusted if you replace the bolt or the entire BCG?

spamsammich
18 June 2009, 09:30
If you replace the bolt or bcg, just make sure the bcg won't close on a field headspace gauge. You can buy one through Bushmaster or Brownells. If it closes, get a new barrel. Headspace isn't easily adjustable.

williamN
18 June 2009, 14:13
Thanks!