Suppressed SBR is no longer reliable.

[Grip]

My suppressed SBR is no longer reliable.

SilencerCo Saker 556
13.7" Noveske barrel, mid length gas system
Noveske gas block pinned (non adjustable)
UCWRG BCG
BCM extractor upgrade (just installed, unfired)
H2 buffer
SpringCo Blue spring

Using strictly Federal XM193 55gr 5.56

The gun runs flawlessly without the suppressor. With the suppressor i was getting failures to extract (reasoning for the BCM extractor upgrade), the rifle also would double feed forming the 2nd round it picked up into a taco by bending the case to the point it was unusable (this most likely was the extractor failing to do its job, and the carrier trying to feed a new round into the failure that had previously happened) this happens 2-3 times per magazine.

1-2 times in the last 400rnds fired while suppressed i have blown primers out of the case, the result was a locked up trigger, and a locked up bcg.

Id rather not change more than one thing at a time. My first change is the BCM extractor upgrade kit.

What else should i pickup before next weekend when i head out into the desert to spend some time getting this rifle to run reliably suppressed? I have read that the BCM A5 buffer system may be worth acquiring. I have also looked into the SLR .750 adjustable gas blocks, but i would prefer to keep my gas block pinned if possible.

I have started researching adjustable bolt carriers, but i am undecided on taking that path.

I have an H buffer, and a standard BCM mil-spec buffer/recoil spring so far to take out with me next time.

Thank you for any help or input.