SIG SAUER P320 Sub-Compact/XCompact Slide Assembly w/X-Ray3 Day/Night Suppressor Sights 9mm Luger 3.6 in Barrel Optic Ready Nitron DLC Stainless Steel. Optic ready. Compatibility: ROMEO1-PRO ROMEO2 Delta Point Pro and RMR (requires sealing plate) footprint. For use with Standard 9MM 3.6in non-threaded or 4.3in threaded barrels. Sub-compact XCOMPACT and Compact grip modules. Warning: This does not void your firearm warranty. This slide is for 9mm barrels only and is not compatible with .40 .357 or .45. This product is the SLIDE ONLY (barrel and recoil assembly are not included). Specifications for SIG SAUER P320 Sub-Compact/XCOMPACT Slide Assembly 9mm Luger w/X-Ray3 Day/Night Suppressor Sights: Manufacturer: SIG SAUER Gun Make: SIG Sauer Gun Model: SIG Sauer P320 Caliber: 9mm Luger Gun Frame Size: Sub-Compact Optic Cut: Leupold DeltaPoint Pro Color: Black Length: 3.6 in Finish: Nitron Black Fabric/Material: Stainless Steel Included Accessories: XRAY3 Day/Night Suppressor Height Sights Condition: New Features of SIG SAUER P320 Sub-Compact/XCOMPACT Slide Assembly 9mm Luger w/X-Ray3 Day/Night Suppressor Sights Xray3 Day/Night Suppressor Height Sights; Durable Dlc Matte Finish; Removable Flush-Fit Optics Plate With Top Accessible Screws; Package Contents: SIG SAUER P320 Sub-Compact/XCOMPACT Slide Assembly 9mm Luger w/X-Ray3 Day/Night Suppressor Sights SIG SAUER Infinite Guarantee What firearm models does the manufacturer say SIG SAUER P320 Sub-Compact/XCOMPACT Slide Assembly 9mm Luger w/X-Ray3 Day/Night Suppressor Sights is compatible with? The manufacturer says that SIG SAUER P320 Sub-Compact/XCOMPACT Slide Assembly 9mm Luger w/X-Ray3 Day/Night Suppressor Sights is compatible with SIG Sauer P320SIG SAUER 8900957: P320 Sub-Compact/XCompact Slide Assembly w/X-Ray3 Day/Night Suppressor Sights 9mm Luger 3.6 in Barrel Optic Ready Nitron DLC Stainless Steel Black