A cantilever-style scope mount is useful for a variety of rifle configurations, since it allows users to mount their optic out farther on the rail. This provides enhanced eye relief and also opens up room behind the ocular lens, so shooters can add irons, magnifiers and other accessories. The American Defense Delta Cantilever Scope Mount offers a solid, high-quality mounting option for shooters looking to build a total rifle system. Each American Defense Delta-C Mount is incredibly light and strong, since it's made entirely from 6061-T6 aluminum. Designed specifically for use on flattop AR-15 receivers, this mount features the same ring spacing as the company's Recon mount and features a 1.5-inch center-line height when used with 30mm rings. The other highlight of this American Defense Delta Cantilever Mount is the use of the company's patented QD Auto Lock Lever system, which ensures a solid lock on any compatible Picatinny rail, even if the rail itself is slightly out of spec. The mount requires no special tools for adjustment, and the lever can be set to lock at the front or rear of the rail surface.