Norsso P320 pBentham Compact Slide Black. 9" length barrels or 4.6" length threaded barrels (compact length) Compatible for 9mm applications Specifications for Norsso P320 pBentham Compact Slide: Manufacturer: Norsso Gun Make: SIG Sauer Gun Model: SIG Sauer P320 Caliber: 9mm Luger Optic Cut: Trijicon RMR Color: Black Length: 6.75 in Width: 1 in Height: 1.25 in Fabric/Material: Stainless Steel Features of Norsso P320 pBentham Compact Slide Optic mount thread pitch: #6-32 UNC Cosmetic/Lighting Porting Compensated barrel ports (Inline pattern) Package Contents: Norsso P320 pBentham Compact Slide What firearm models does the manufacturer say Norsso P320 pBentham Compact Slide is compatible with? The manufacturer says that Norsso P320 pBentham Compact Slide is compatible with SIG Sauer P320Norsso N320C-PBEN-RMR-BLK: P320 pBentham Compact Slide Black