KNIGHT'S ARMAMENT 7.62 QDC/CQB-PRG 7.62MM QUICK DETACH SUPPRESSOR The 7.62 CQB suppressor was designed as an optimal signature reduction device when reduced overall length is desired for large frame medium-caliber class rifles with a heavy firing schedule. Performance focus is toward flash mitigation, back-pressure reduction, and durability. Pressure Reduction Technology (PRT) minimizes back pressure, resulting in a negligible gas increase in the system that is typically responsible for bolt carrier velocity and rate-of-fire acceleration. This feature also pushes noxious gases forward and away from the user, increasing comfort and reducing harmful exposure. Mfg: Knights Armament