hunting-universal-single-rail-bm05-picatinny-weaver-barrel-mount-w-5-slots
hunting-universal-single-rail-bm05-picatinny-weaver-barrel-mount-w-5-slots, This item has six sizes of ring diameters due to the screws length, the pictures are all the max dia of the rings, hope you can understand.Solid Aluminum Construction with Matte Black FinishSmart 2 Piece Design for Clamping; Rail Type: Picatinny/WeaverDesigned to mount flashlight or laser on hand pistols, rifles and shotgunLength: 2.4 inch, Width: 1.4 inch Design Clamps to Barrel Diameters 1" to 1.2"