Low-profile, add-on rail lets you mount a flashlight, laser, red dot sight, or other tactical accessory at a 45deg angle, so it's close to the rifle's center line without obstructing your primary sight system. Precision-machined aluminum body uses a full-length steel clamping bar and thr ee hardened steel socket head bolts to anchor the mount securely to any Picatinny rail with minimal weight increase to your weapon. Five cross-slots; accepts Picatinny and Weaver-style accessories. Mfg: Double Star SPECS: Aluminum, anodized, matte black finish. 2-1/8" (5.4cm) long, 1-7/8" (4.8cm) wide, 11/16" (1.8cm) high. 2.3 oz. (66g) wt.