2pcs Tactical 30mm Extreme Low Rifle Scope Weaver Mount Rings for Leupold Night Force - Full Metal Durable BSS&reg; 30mm Extreme Low Profile Scope Mount Ring Fit Aimpoint, Leupold, Night Force, and other 30mm scopes, laser and flashlights High quality aluminum alloy, BLACK Six bolts ring style, HEAVY DUTY !!! Fit on 21mm picatinny and weaver rails