The American Defense AD-AEMS QD Red Dot Mount for Holosun AEMS, Lower 1/3 Co-Witness is an American Defense Mfg. quick-detach mount for Holosun AEMS optics, at lower 1/3 co-witness height. It clamps to a Picatinny rail with ADM's patented Auto Lock quick-detach lever, which self-adjusts to in-spec and out-of-spec Picatinny rails without tools and returns to zero when refitted.
How It Compares
Height is the whole decision with an AEMS mount, and this one is lower 1/3 co-witness. The same mount is also available as AD-AEMS at absolute co-witness, AD-AEMS at 1.93 in, AD-AEMS at 2.33 in (night vision). If your optic uses a different footprint, the AD-RMR-LW mount is cut for the Trijicon RMR and SRO, the AD-MRO-LW mount for the Trijicon MRO and the AD-509T mount for the Holosun 509T.
Ideal For
- Practical and competition rifle stages shot at speed
- Practical shotgun, where a fast, unmagnified sight picture wins
- Quick-detach removal for travel, cleaning and locked transport
- Airsoft and training rifles that share a red dot with a live-fire host
Key Features
- Fits: Holosun AEMS optics
- Height: Lower 1/3 co-witness
- Mount: Picatinny, using ADM's patented Auto Lock quick-detach lever
- Return to zero: Auto Lock lever returns the optic to zero when refitted
- Material: 6061-T6, Type III hardcoat
- Origin: Made in USA
What's Included
- 1 × American Defense AD-AEMS Holosun AEMS QD Mount Lower 1/3 Co-Witness
- Mounting hardware
Technical Specifications
Fits | Holosun AEMS optics |
Mount | Picatinny (Auto Lock QD) |
Height | Lower 1/3 co-witness |
Material | 6061-T6, Type III hardcoat |
US Shipping & Support
Shipped from D&R Sports Center in the USA with fast, tracked delivery. Questions on fit, mounting or which model suits your setup? Our team is glad to help before and after your purchase.
Frequently Asked Questions
Which optics fit this mount?
Holosun AEMS optics. It is not cut for the Trijicon RMR, Trijicon MRO or Holosun 509T footprints.
What height does this mount give?
This version is lower 1/3 co-witness, which sits the dot above AR-height iron sights, so the irons appear in the lower third of the window and leave a clear view above.
Does this mount return to zero after removal?
Yes. It uses American Defense Mfg.'s patented Auto Lock quick-detach lever, which self-adjusts to the rail and returns the optic to zero when refitted, so it can be taken off for travel or cleaning and put straight back on.
What rail does this mount fit?
A MIL-STD-1913 Picatinny rail. The Auto Lock lever self-adjusts to in-spec and out-of-spec rails without tools.
Which AD-AEMS height should I choose?
Absolute co-witness aligns the dot with AR-height iron sights; lower 1/3 sits it above them; 1.93in raises the optical centerline to 1.93in / 49 mm for a heads-up posture; and 2.33in / 59 mm is the night vision height.
