AR15 M4 30mm / 1" Scope Mount with Level Bubble QD70

Works with both 30mm and 1 inch scopes Heavy duty, single-unit base, machined from aircraft grade aluminum alloy Rear spirit bubble level, helps fine tune scope in perfect position Shock proof Built in Weaver style rails - very handy fitting flashlights and lasers etc. Ring size: 30mm / 1” (with insert included) Overall height: 2 1/2" Overall length: 4.3 inches Weight: 7 ounces