My attempt at a linear compensator. It is threaded for 5/8-24. I highly suggest running a tap through it first (they're like 12 bucks on amazon) then inserting a thread adapter. You know where to go from there.
LBRY Tags: 9mm; compensator
9mm compensator H2PE
9mm Ammo Box
SauerkrautV2 Megapistol 17 mount