The AFTERBURNER and RAMJET together reduce recoil by up to 44% when using 115g ammunition. At only .47 inches long, the AFTERBURNER offers unprecedented performance in a micro compensator, outperforming most full-size compensators on the market. The INTRA-LOK mounting system utilizes a tapered locking pin that interfaces with an angled V-groove on the underside of the barrel, perfectly timing the compensator as it locks onto the V-shaped profile on the barrel's muzzle end. The angled front faces of the AFTERBURNER aid in holstering. The Radian RAMJET is a match-grade pistol barrel that ensures an accurate and reliable weapon system. The fluted barrel features a gas-sealing chamber and a loaded chamber indicator. This combination kit is designed for GLOCK17 GEN5 versions, and the AFTERBURNER Compensator and RAMJET Barrel are legal for sale in all 50 states.*