American Defense AD-B2 Lower 1/3 Mini ACOG QD Mount

The American Defense AD-B2 lower-one-third mount is a quick-detach base for Mini ACOG optics. Instead of using one of the numbered height options, this version is identified by its lower-one-third position. The mount is finished in black and keeps the Mini ACOG attached to a dedicated B2 base.

The lower-one-third designation makes this model easy to separate from the 1.41, 1.64, 1.93, and 2.33 in B2 variants. Its quick-detach connection allows the optic and mount to be removed together as a complete unit. The Mini ACOG fit remains the same, so the main decision is whether this height description matches the intended optic position.

This model is a good fit for a Mini ACOG setup where lower-one-third placement is preferred over one of the fixed numeric heights. It keeps the mounting system direct and avoids mixing parts from different B2 configurations. More ACOG mounting choices are available in optics and rangefinders.

• Mini ACOG mounting base
• Lower 1/3 height configuration
• Quick-detach attachment
• Black finish