LaRue Tactical 2 Piece QD Mount 30mm Black. The LT123 rings are ideal when mounting rifle scopes with extra large objective lenses where clearance is a concern. These 30mm rings attach to any MIL-STD-1913 Picatinny rail but are the perfect-match for the LT113 on Remington 700 model rifles. The LT123 positions the centerline of the optic 1.28" above the top of the rail. Specifications for LaRue Tactical 2 Piece 30mm QD Mount: Manufacturer: LaRue Tactical Tube Diameter: 30 mm Quantity: 1 Condition: New Color: Black Package Contents: LaRue Tactical 2 Piece 30mm QD Mount LaRue Tactical LT123: 2 Piece QD Mount 30mm Black