ne-piece integral base and rings with dual-lever system provides a quick attach/detach platform for mounting optics onto flattop-style AR-15s. Extra-high cantilever mount positions optics 2" forward, allowing you to get the eye relief you need. Precision machined from 6061 T6 aluminum and finished in hard coar T3 Mil-Spec anodize. Features ADM's Patented QD Auto Lock Lever system to accommodate both in spec and out of spec rail systems. Mfg: American Defense Manufacturing SPECS: 6061-T6 Aluminum, T3 mil-spec anodized, matte black. 8 oz (226g) wt. (all models). Heights measured from top of rail to centerline of scope tube. AD-RECON-H - 6" (15.2cm) OAL. 1" and 30mm model - 1-7/8" (4.7cm) height. 2A 1/2" (6.3cm ) space bet