ADM's AD-1700 Riser delivers a QD solution for an extended length picatinny rail, offering a 0.60" rise above the mounting surface. It measures 5.5" long, and provides a forward to push the optic over the handguard for use with helmet-mounted night vision devices. This mount is perfect for mounting the XPS and EXPS EOTECH HWS and magnifier combos. The centerline height is 2" with the 512/XPS Models and 2.33" with the EXPS Model EOTECH Sights. Features: Does not require proprietary tools for adjustment. Can be adjusted with your finger or a flat blade screwdriver. Lever can be configured to lock to the front or the rear. Superior clamping surface to insure maximum rail engagement. American Defense Manufacturing ADM AD-1700 Black Riser w/Ti Levers AD-1700-XLR-TL