Norsso P365 Reptile C Slide Black. 1 in 6.5 in Width: 1 in Height: 1.375 in Fabric/Material: Stainless Steel Features of Norsso P365 Reptile C Slide Optic mount thread pitch: M4 x 0.7 Cosmetic/Lighting Porting Compensated barrel ports (C pattern) Package Contents: Norsso P365 Reptile C Slide What firearm models does the manufacturer say Norsso P365 Reptile C Slide is compatible with? The manufacturer says that Norsso P365 Reptile C Slide is compatible with SIG Sauer P365 SIG Sauer P365XNorsso N365-REPCOMP-507K-BLK: P365 Reptile C Slide Black