Similar to the AD-RECON, the AD-RECON-X mount is made for putting high power glass onto a flattop style AR-15. The cantilever on the AD-RECON-X provides extended eye relief over the AD-RECON model. This mount provides the longest built in eye relief offered on our mounts. It is precision machined from 6061 T6 aluminum and finished in hard coat T3 Mil-Spec anodize. It features the Patented QD Auto Lock Lever system to accommodate both in spec and out of spec rail systems. For 34mm rings. American Defense Manufacturing American Defense AR15 Scope Mount 34mm AD-RECON-X34STD