American Defense AD-B4 Modular Base Picatinny-Style Matte
Product #: 638225
American Defense #:
AD-B4-BASE
Product Information
The American Defense AD-B4 Modular Base is the largest base in the American Defense modular lineup. Standalone it is a full-size ACOG mount. Alternatively it can accept several different risers to accommodate a variety of uses. It is precision machined from 6061 T6 aluminum and finished in hard coat T3 Mil-Spec anodize. It features the patent pending Auto Lock Lever system to accommodate both in spec and out of spec rail systems. The Auto Lock Lever system 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
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