The AD-170-VPG provides a QD solution for a picatinny rail, offering a .60″ rise above the mounting surface. Overall length is 2.3″. It accepts all VPG bolt on rails that come in both 3 lug and 5 lug variations. 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.