CURRENTLY BACK ORDERED - CONTACT US TO GET ON WAITING LIST 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 XD and EMP barrels are drop in and will only occasionally require a gunsmith to fit. Extended lengths are available, as well as ported and threaded options. All models have a 2-port extended barrel option with the ports extending beyond the end of the slide. Check with the manufacturer of your attachment to verify thread option before ordering. XD(m) barrels and conversions are currently only available for the 40S&W model. FITS: Springfield XD • 4.05" 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. • 40S&W and 357Sig barrels are interchangeable.