SIG SAUER P320-XFive Pro-Cut Full-Size 9mm Pistol Slide Complete Assembly 5in Optic Ready Black. Featuring a 5'' match-grade barrel and stainless steel slide construction for incredible accuracy and durability. It comes standard with a fiber optic front sight and adjustable rear sight which may be replaced with our PRO footprint optics such as the ROMEO2 or ROMEO-X PRO. The recoil system uses a solid steel guide rod and a 14lb 1911-style spring with an additional 12lb spring. Specifications for SIG SAUER P320-XFive Pro-Cut Full-Size 9mm Pistol Slide Complete Assembly: Manufacturer: SIG SAUER Gun Make: SIG Sauer Gun Model: SIG Sauer P320 X-Five Gun Frame Size: Full Size Color: Black Finish: Nitride Caliber: 9mm Luger Features of SIG SAUER P320-XFive Pro-Cut Full-Size 9mm Pistol Slide Complete Assembly Grip module compatibility: Both the full size X and non-X series. Only for use on 9mm/.357SIG/.40S&W fire control units (FCU). It will not function with a .45ACP FCU. Holster compatibility: Fits P320-XFIVE holsters. Package Contents: SIG SAUER P320-XFive Pro-Cut Full-Size 9mm Pistol Slide Complete Assembly Complete Slide Assembly 5.0'' Barrel Guide Rod 2 Recoil Springs SIG SAUER Infinite Guarantee What firearm models does the manufacturer say SIG SAUER P320-XFive Pro-Cut Full-Size 9mm Pistol Slide Complete Assembly is compatible with? The manufacturer suggests that SIG SAUER P320-XFive Pro-Cut Full-Size 9mm Pistol Slide Complete Assembly is compatible with SIG Sauer P320 X-FiveSIG SAUER 8901572: P320-XFive Pro-Cut Full-Size 9mm Pistol Slide Complete Assembly 5in Optic Ready Black