Designed with computer aided flow dynamics, the SI Oppressor provides a no compromise solution for redirecting the overpressure produced by aggressive brakes and compensators. While this does accomplish reducing side concussion, braking performance becomes reduced as well. The OPPRESSOR is compatible with the SI muzzle devices to include: Venom-FH, Checkmate Comp, King Comp, MK-9 Comp, J-Comp Gen2, Sierra Comp, and Triple Crown Comp. Typical concussion reduction devices simply sleeve the brake, with a simple open end to redirect gasses. The Strike Industries Oppressor represents the next evolution in concussion reduction devices.