LaRue Tactical LT107 .50 BMG QD Speed Lever Rifle Scope Mount Designed to withstand the heaviest recoil Built-in 30 minutes of slope Designed by request for the U.S. Army M107 Military Long Range Sniper Rifle LRSR.50 Cal. 3 QD Speed Levers for additional stability Comes in 1-inch, 30mm, 34mm & 35mm Rings