Skip to main content
We may get paid by partner for deals, including promoted items

Menu

10% off

Price history at MidwayUSA

$101$91Oct 2026Nov 5, 2026

Recorded at MidwayUSA since Oct 9, 2026: low $90.76 (Oct 31, 2026), high $100.95 (Oct 9, 2026). Last checked Nov 1, 2026.

Product Description

The American Defense AD-B3 Modular Base is the second 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: Notes:Does not require proprietary tools for adjustmentCan be adjusted with your finger or a flat blade screwdriverLever can be configured to lock to the front or the rearSuperior clamping surface to insure maximum rail engagement

American Defense AD-B3 Modular Scope Base Picatinny Standard Lever Matte Black

$90.76 $100.95 10% Discount
You save $10.19
In Stock at MidwayUSA
Price verified 3d ago
Buy Now at MidwayUSA
Secure checkout Easy returns
or compare prices

Product Details

Category Red Dot Sight Mounts & Adapters
MPN AD-B3-STD

Price history at MidwayUSA

$101$91Oct 2026Nov 5, 2026

Recorded at MidwayUSA since Oct 9, 2026: low $90.76 (Oct 31, 2026), high $100.95 (Oct 9, 2026). Last checked Nov 1, 2026.

More from American Defense