Norsso P320 pBentham Sub Compact Slide Black. 6" length standard barrels or 4.3" length threaded barrels (sub-compact length) Compatible with 9mm applications Specifications for Norsso P320 pBentham Sub Compact Slide: Manufacturer: Norsso Gun Make: SIG Sauer Gun Model: SIG Sauer P320 Caliber: 9mm Luger Optic Cut: Trijicon RMR Color: Black Length: 7.375 in 3.6 in Width: 1 in Height: 1.375 in Fabric/Material: Stainless Steel Features of Norsso P320 pBentham Sub Compact Slide Optic mount thread pitch: #6-32 UNC Cosmetic/Lighting Porting Compensated barrel ports (Inline pattern) Package Contents: Norsso P320 pBentham Sub Compact Slide What firearm models does the manufacturer say Norsso P320 pBentham Sub Compact Slide is compatible with? The manufacturer suggests that Norsso P320 pBentham Sub Compact Slide is compatible with SIG Sauer P320Norsso N320SC-PBEN-RMR-BLK: P320 pBentham Sub Compact Slide Black