bcg

[ARDude]

I want to get a new upper. Should I purchase a new bcg for the new upper, or can I use the old one?

[m16]

I'd buy a new bolt and cam pin, but a used carrier should be fine.

[BrassCase]

Any idea how many rounds you put through it? Is it a good quality BCG?

[ARDude]

Less than 1000 rounds. Made by bushmaster, bought it back in 2005.

[ScottsBad]

Less than 1000 rounds. Made by bushmaster, bought it back in 2005.

Bushmaster? Buy a new bolt/carrier combo. BCM preferred.

[jasonnorcal]

+1 what m16 said. Bolt wears into the barrel extension becoming matched. You can reuse the bolt but will have excessive wear when the bolt wears into the new barrel extension

[G21Shooter]

Bushmaster? Buy a new bolt/carrier combo. BCM preferred.

We have a winner! Get a BCM BCG. Being that they are built to spec you should not have to worry about headspace.

[Dsal_13]

Yea definetly go with a new one.. might as well have all new upper components brand new!

[negolien]

You can reuse the bolt... I have before and have had 0 issues. If you can afford to buy a brand new one fine but no need to spend extra money if you don't have it.

[Mossy Man]

The carrier should be ok. Get a new bolt. Ive gt a few extras on hand anyway.

[ARDude]

Thanks for the info. I think I will just get a new one. Might as well start with all new upper and bcg.

[G21Shooter]

Thanks for the info. I think I will just get a new one. Might as well start with all new upper and bcg.

Good idea, the BCG is the heart of a AR and you want it to be in good shape and quality.