American Defense B4 Modular Base - AD-B4

Description The AD-B4 modular base is the largest base in our modular lineup. Standalone it is a fullsize ACOG mount. Alternatively it can accept several different risers to accomodate a variety of uses. 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. Features The AD-B4 Modular 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. Materials & Construction The AD-B4 Modular base is precision CNC machined from a block of 6061 T6 aluminum and finished in hard coat type 3 Mil- Spec anodize for a rock hard lasting finish. 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. Specifications The AD-B4 Modular base has the following specifications: Weight: 3.05 ounces