Daniel Defense 02016514: The Daniel Defense Offset Flashlight Mount is designed for use in conjunction with a vertical foregrip. Precision machined from 6061-T6 aluminum, it utilizes a patented \"Rock and Lock\" one piece mounting system for a more streamlined mount and easy installation on any MIL-STD-1913 picatinny rail. This mount is compatible with 1\" diameter flashlight bodies, has a black hardcoat anodized finish, and can be mounted on either side rail.