Jnrtifow Scope Barrel Clamp Mount Adapter with Weaver Picatinny Rail

Solid Aluminum Construction with Matte Black Finish Smart 2 Piece Design for Clamping Barrel Range: Diameter 20mm-28mm Material: Aluminum Rail Type: Picatinny/Weaver Length: 1.57 inch(40mm) Designed to mount flashlight or laser on hand pistols,rifles and shotgun. 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. Package Include: 1 x Barrel Mount 1 x Wrench