The Advantage Side Mount is one of the strongest built side mounts on the market. The manual locking, easy push button slide, lock-unlock system incorporates an extremely strong lock that holds gear securely. This side mount will hold most other popular manufacturers' gear as well. Bolting dimensions are the same as most manufacturers' - making it simple to just replace the mount. Holds most manufacturers' products, too. Positively locks gear in place. Positioning at every 30 degrees. Dimensions: 4" x 2" x 2" Bolting dimensions: 1-5/16" x 3-3/16"