StormLake 34017 Glock Compatible Standard 21/21SF 10mm Conversion for 45 ACP 4.6 in Stainless

StormLake Glock compatible barrels are machined from certified 416R stainless steel for superior strength, durability and accuracy. These barrels are threaded, match grade, hardened to 40-42 HRC, and cut broach rifled to shoot jacketed or lead bullets. All barrels are chambered for full case support. All Glock barrels are drop in and will only occasionally require modification to fit.