donkeyslayer
Well-known member
- Joined
- Aug 19, 2012
- Messages
- 53
How can I adjust barrel alignment? My OEM upper is not closing on the rounds with my CF -W9mmA bolt. It will close if you slam it but gets jammed and leaves marks on an empty case head the barrel needs to go up.The bolt works fine in all other uppers and the OEM works with the OEM bolt. Can it be fixed? It won't run at all with the OEM upper and the W bolt.
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