Function: Pistol Compensator. It features top gas ports designed to redirect expanding gases upward when firing. This forces the muzzle down to reduce muzzle flip and recoil for faster follow-up shots.
Compatibility: Made for the Springfield Hellcat / Hellcat Pro (threaded 1/2x28 barrel models).
Mounting: Threads onto the barrel end and secures with set screws (the set screw holes are visible on the sides and bottom).