Norsso P320 Reptile Ported Full-Size Slide Black. 7" length barrels only (full-size length) Compatible for 9mm applications Specifications for Norsso P320 Reptile Ported Full-Size Slide: Manufacturer: Norsso Gun Make: SIG Sauer Gun Model: SIG Sauer P320 Caliber: 9mm Luger Optic Cut: Shield RMSc Trijicon RMR Color: Black Length: 4.7 in 6.25 in Width: 0.875 in Height: 1.25 in Fabric/Material: Stainless Steel Features of Norsso P320 Reptile Ported Full-Size Slide Optic mount thread pitch: #6-32 UNC Cosmetic/Lighting Porting Compensated barrel ports (Inline pattern) Package Contents: Norsso P320 Reptile Ported Full-Size Slide What firearm models does the manufacturer say Norsso P320 Reptile Ported Full-Size Slide is compatible with? The manufacturer says that Norsso P320 Reptile Ported Full-Size Slide is compatible with SIG Sauer P320Norsso N320FS-REP-PORT-RMR-BLK: P320 Reptile Ported Full-Size Slide Black