The Faxon Match Series Pistol Barrel for Glock 17 Gen 5 is precision-machined from stress-relieved 416-R stainless steel with a black Nitride coating for enhanced durability and performance.Faxon Match Series Pistol Barrel for Glock 17 Gen 59mm caliber with 1:10 twist rateFlame fluted profile for reduced weight and enhanced cooling416-R stainless steel construction fully stress relievedBlack Nitride finish for increased lubricity and wear resistance1/2x28 muzzle threading for suppressor/muzzle device compatibility11-degree target crown for improved accuracyButton rifled with conventional rifling patternDrop-in installation no gunsmithing requiredEngineered with better-than-factory tolerances for consistent lockup and enhanced accuracy. Compatible with a wide range of ammunition including cast lead bullets making it ideal for competitive shooting tactical applications and precision training.