The ADM-170-S base 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. Includes two 10-32 x 3/8" flathead socket screws. This Product is subject to ITAR/EAR Export Controls. Please visit our ITAR/EAR page (click here) or Contact Us for more Information. This lever is manufactured by American Defense Manufacturing NOT by B&T Industries L.L.C. This is the same lever installed on all lever-mounted models of Atlas Bipod (except the 5-H model BT35-LW17) as indicated by "LW17" (BT10-LW17, BT46-LW17, BT47-LW17, BT65-LW17, BT69-LW17, BT72-LW17). This lever is compatible with all No Clamp models of Atlas Bipod (except the 5-H model BT35-NC) as indicated by "NC" (BT10-NC, BT46-NC, BT47-NC, BT65-NC, BT69-NC, BT72-NC). This lever will NOT attached directly to the two-screw clamp models of Atlas Bipod (BT10, BT65, BT69, BT72). See our BT43 for a direct quick detach solution. SPECIFICATIONS: Weight: 1.905 ounces FEATURES: The AD-170S base features the Patented QD Auto Lock™ Lever system which has the following advantages: 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. Precision machined from 6061 T6 Aluminum. Hard coat anodized for a lifetime of performance. Fully adjustable to fit both in spec and out of spec rail systems. American Defense MFG, LLC. products feature a lifetime warranty. Features the Patented QD Auto Lock™ Lever system. Made with pride in the U.S.A. Product Downloads Installing and adjusting the ADM Lever