Samson Rapid Precision Mount (RPM) Scope Mount/Ring Combo features a 30mm tube diameter, 1.51 medium mount height, and a 2 offset optimized for AR-15 / AR-10 MSR tactical rifle platforms. Constructed with a matte black finish, this 1-piece mount measures 5.95 long and 1.75 wide while weighing 8.40 oz. It interfaces with mil-spec Picatinny rails and includes rings. Safety Note Always ensure the firearm is unloaded before installing or adjusting any optics or bases. Verify proper torque specifications during installation. Improper mounting may affect accuracy and safety.