This Universal Picatinny/ MIL-STD 1913 Rail is perfect for mounting accessories to rifle and shotgun forend, stock and receiver you tap and drill your self. Simply mount shotgun forend picatinny rail where you need with appropriate screws for your project. Mount comes with 4 pre-drilled holes. Made from air craft grade black anodized aluminum Length: 4.7". Screws not include.