Norsso P365XL Rail Slide Black N365XL-RAIL-507K-BLK. 125 in 3.7 in Width: 1 in Height: 1.375 in Fabric/Material: Stainless Steel Features of Norsso P365XL Rail Slide Optic mount thread pitch: M4 x 0.7 Cosmetic/Lighting Porting Package Contents:...