The American Defense AD-B2 Cantilever Mini ACOG mount in the Mid height sets the optic at a 1.64-inch centerline (brand part no. AD-B2-M-STD). It is built on a 0.75-inch reverse cantilever that moves a Mini ACOG or similar compact scope rearward, which solves the eye relief problem those optics have on an AR. American Defense machines it from 6061-T6 aluminum with a hard coat anodized finish and the patented QD Auto Lock lever. The maker lists the EOTech Vudu 3×9, Trijicon Mini ACOG (TA33, TA44), Sightmark Wraith Mini and Primary Arms GLx 2x and SLx 1x/3x scopes as fits. Pick the height that matches your cheek weld and rear sight: this one is the mid option.

Key Specifications

• Centerline height is 1.64 inches, the Mid position in the AD-B2 line.
• The rise above the rail is 0.69 inch, which is what raises the optic to this centerline.
• A 0.75-inch reverse cantilever lets the optic sit farther rearward, which fixes the eye relief problem common to Mini ACOG-style scopes.
• Listed fits include the EOTech Vudu 3×9, Trijicon Mini ACOG (TA33, TA44), Sightmark Wraith Mini and Primary Arms GLx 2x and SLx 1x/3x micro prism scopes.
• The B2-M is the first height that clears a back-up iron sight, and the maker says it clears only the Magpul MBUS Pro, MBUS 3 and MI Combat rear sights.
• The mount is CNC machined from 6061-T6 aluminum, a strong, light alloy suited to a rail mount.
• The patented QD Auto Lock lever works on both in-spec and out-of-spec Picatinny rails, with no proprietary tools required.

Frequently Asked Questions

Will this AD-B2 height clear my back-up iron sight? Only some. The maker states the B2-M clears the Magpul MBUS Pro, MBUS 3 and MI Combat rear sights and that taller mounts clear back-up iron sights.

Which optics does the AD-B2 family fit? The maker lists the EOTech Vudu 3×9, Trijicon Mini ACOG (TA33, TA44), Sightmark Wraith Mini and Primary Arms GLx 2x and SLx 1x/3x micro prism scopes.

How high does the Mid AD-B2 sit the optic? The centerline is 1.64 inches, with a 0.69-inch rise above the rail, according to the maker’s AD-B2 chart.

Buy the American Defense AD-B2 Cantilever Mini ACOG Mount, 1.64-Inch Mid

The right AD-B2 height is a matter of where your eye lands behind the optic, and the 1.64-inch version gives a defined answer instead of a guess. Order it from our Lubbock, Texas gun shop for fast shipping, and browse our other scope mounts.