The American Defense AD-AEMS High 1.93″ QD Mount (brand part no. AD-AEMS-H-STD) is a purpose-built quick-detach replacement mount for the Holosun AEMS red dot. Machined by American Defense Mfg in the USA, it locks the AEMS to a Picatinny rail at a 1.93″ absolute co-witness height for fast, repeatable target transitions on an AR-platform rifle. It is built for shooters who run their optic hard and need it to return to zero every time it is removed and reinstalled.

Key Specifications

• Machined from 6061 T6 aluminum, giving the mount a rigid, lightweight body that will not flex under recoil.
• Finished with hard coat T3 Mil-Spec anodize for corrosion and wear resistance in field conditions.
• Sits at a 1.93″ absolute co-witness height, aligning the Holosun AEMS reticle with standard AR iron sights.
• Uses the patented QD Auto Lock lever system, which locks down on both in-spec and out-of-spec Picatinny rails.
• Purpose-fit for the Holosun AEMS red dot, matching its mounting footprint exactly with no shimming required.

Frequently Asked Questions

Does this mount fit other red dots besides the Holosun AEMS? No, the AD-AEMS mount is machined specifically to the AEMS footprint for a precise, no-play fit.

Will it hold zero if I remove and reinstall the optic? Yes, the QD Auto Lock lever is designed to return to the same locked position every time, which is the point of a quick-detach mount.

What height co-witness does this version give me? This is the high 1.93″ version for absolute co-witness with standard AR-15 iron sights; American Defense also offers a lower and NV-height version for other setups.

Buy the American Defense AD-AEMS High 1.93″ QD Mount

If you are running a Holosun AEMS on an AR build and want a mount that locks up tight and comes back to zero, the AD-AEMS High QD Mount from American Defense Mfg is purpose-built for exactly that job. Browse our full lineup of red dot mounts and order from our Lubbock, Texas gun shop for fast, insured shipping.