KNIGHT'S ARMAMENT CRS-3 5.56 NATO RIFLE SUPPRESSOR The 5.56 CRS-3 is a high-performance standard sized suppressor with exceptional sound and flash performance. Pressure Reduction Technology (PRT) ensures that bolt carrier velocity and cyclic rates of fire are nearly identical to the system's unsuppressed performance, while reducing operator exposure to harmful combustion gasses. Achieving an "At Ear" sound pressure level of 134 dBA and an "At Muzzle" sound pressure level of 135 dBA, with virtually no first round flash or pop, and without negatively affecting system performance, the 5.56 CRS-3 is a unique full auto rated low-weight rifle sup Mfg: Knights Armament