ADM Mounts, especially the RECON, is perfect for mounting riflescopes on AR-15 (flattop style) platforms. The shooter enjoys for proper eye relief as it comes with cantilver, which throws the scope out front. These rock solid mounts come with QD Auto Lock System, which are characterized by in spec as well as out of spec rail systems. Besides AD-RECON, there are different types of American Defence mounts available such as ADM Aimpoint canti mount AD-68-CSTD, ADM Trij MRO mount tac lever AD-MRO-10TACR, AD_DELTA, AD-B3, and others. Have a look at the American Defense Manufacturing Scope Mounts and Buy Now! American Defense MFG - Comparison Table