Originally Posted by
Tank Boss
Not sure when the barrel was made, I bought it new from DD in early 2020, when I did the build. I only shoot M193 & M855 (no civilian loads). I meant "finicky" referring to AdjGB's and EZ tune tubes...what can go wrong, will. It runs really smooth/soft unsuppressed with the Sprinco Green and either the H3 or H4.
What I think may be the issue: my buddy has a top-o-line Surefire suppresser (2" longer x2.5$ more than my AAC) on his 11.5" and his ejects to 4:30. BUT my ACC is very noticeably quieter than his SF. So, I think my AAC must be a can with a lot of back-pressure. I wouldn't trade my AAC for a SF; his has broken twice and been warranty replaced twice. Simply falls apart...and isn't that quiet. Not hating on SF, just my observations.
I don't mind having 2 buffer/spring combos; 1 combo for can, 1 for no-can. But my issue is, I ALWAYS run it suppressed: doing 180-200+ rds per week; in its "primary state," its suppressed. I was just hoping an adjustable buffer with appropriate weighting (7.9, 8.4, 8.7, 9.2,10.2), coupled with the Sprinco or Wolff, would be the easy button answer.