Powder River Precision Spring Calibration Kit All XDM XDM ELITE XD .45 cal XD Mod2 Sub-Compact .45 all XD Mod2 4in& 5in. The pack includes: competition weight and reduced weight trigger springs competition weight and reduced weight striker springs reduced weight sear spring mag-release spring and striker safety spring. It also includes a replacement grip-safety spring and reduced weight striker rebound spring. PRP-014CL-5 is compatible with all Springfield Armory XDM & XDM Elite models & calibers; all XD .45 caliber models; XD Mod.2 4in Service & 5in Tactical models in all calibers; and the XD Mod.2 SubCompact .45 cal. PRP-014CL-6 is compatible with all original XD 9 mm/.40 cal models and XD Mod.2 9 mm SubCompact models. Specifications for Powder River Precision Spring Calibration Kit: Manufacturer: Powder River Precision Gun Make: Springfield Armory Package Contents: Powder River Precision Spring Calibration Kit What firearm models does the manufacturer say Powder River Precision Spring Calibration Kit is compatible with? The manufacturer suggests that Powder River Precision Spring Calibration Kit is compatible with Springfield Armory XD-M Springfield Armory XD .45 ACP Springfield Armory XD Mod2 4in Springfield Armory XD Mod2 5in Springfield Armory XD Mod2 Sub-Compact 3in Springfield Armory XD .40 S&W Springfield Armory XD Mod2 Sub-Compact 3in 9mm Springfield Armory XD 9mmPowder River Precision PRP-014CL-5: Spring Calibration Kit All XDM XDM ELITE XD .45 cal XD Mod2 Sub-Compact .45 all XD Mod2 4in& 5in