Ejecting but won't lock back on last round
#2
I had same problem.    https://6mmarc.com/showthread.php?tid=778
 Ended up removing weight from buffer until reliable lock back.  Running Superlative adj gas block with rifle +2.

I also run a 223/556 upper 20" SLR adj gas block/ rifle length and have to swap buffer/ spring to accommodate. 

Philip
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RE: Ejecting but won't lock back on last round - by pmc847 - 12-13-2022, 09:24 PM

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