SPRINGFIELD ARMORY 10mm 4.5in Black Threaded Barrel Kit for XD-M (XDM1045TB-KIT)

SPRINGFIELD ARMORY 9mm 4.5in Black Threaded Barrel Kit for XD-M (XDM0901TB-KIT)

SPRINGFIELD ARMORY 45 ACP 4.5in Black Threaded Barrel Kit for XD-M (XDM4501TB-KIT)

SPRINGFIELD ARMORY Hellcat Pro 9mm 4.4in Threaded Barrel Kit (HCP0901TB-KIT)

Advantage Arms Conversion Kit, 22LR, 4.49 in Barrel, Fits Springfield Armory XD 9/40, Non-XDM Frames Only, Does Not Fit 3 in Sub-compact, With Range Bag, Black Finish, 10Rd, 1-10Rd Magazine XD940-4

SPRINGFIELD ARMORY Echelon 4.5F 9mm 4.5in Factory Barrel (EC0901-RET)

SPRINGFIELD ARMORY Echelon 4.0C 9mm 4in Black Factory Barrel (EC0901C-RET)

Stern Defense Barrel .45 ACP 16.10", Black