This Universal Picatinny/MIL-STD 1913 Rail is perfect for mounting accessories to a rifle and shotgun forend, stock, and receiver that you tap and drill yourself. Simply mount the shotgun forend picatinny rail where you need it with the appropriate screws for your project. The mount comes with 4 pre-drilled holes. It's made of aircraft grade hard anodized black aluminum. Length: 4.7". Screws are not provided.