The Radian AFTERBURNER + RAMJET for Glock 19/19X/45 is a match-grade barrel and micro-compensator system engineered to deliver major recoil reduction without sacrificing a holster-friendly profile.Featuring a fluted 416R stainless steel barrel and a 17-4 stainless steel compensator with a durable Radianite/DLC finish it also features an unthreaded INTRA-LOK mounted system.Designed to extend a Glock 19 to G17 slide length for wide holster compatibility the AFTERBURNER + RAMJET system ensures you can use a broad range of holsters without modification.The INTRA-LOK mounting system keeps the profile sleek while also providing up to 44% felt recoil reduction while maintaining accuracy reliability and durability for serious performance use. Whether for competition duty or personal defense the Radian AFTERBURNER + RAMJET is built to deliver consistent results.