Machined from certified 416R stainless steel for superior strength, durability, and accuracy. Barrels are 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. Extended lengths are available, as well as ported and threaded options. FITS: Glock 22 • 4.49" Barrel Length • Two port options are extended barrels with ports beyond the end of the slide. • 40S&W-to-9mm conversion barrels require the use of a 9mm magazine.