Description
Lower your sight picture by nearly half an inch to achieve natural cheek weld and absolute co-witness with standard-height backup irons.
Transform your AEMS optic setup with a mounting solution designed for shooters who demand better ergonomics and faster target acquisition. The Holosun AEMS Low Mount reduces your optic height from 1.63 inches to 1.22 inches, eliminating awkward head positioning on lever-action rifles, shotguns, and pistol-caliber carbines while enabling absolute co-witness capability with most factory iron sights. Whether you’re running a hunting shotgun with traditional stock geometry or building a compact home defense setup, this low-profile mount delivers the comfortable, instinctive sight picture you need without adding cheek risers or modifying your firearm.
Key Features
- Absolute Co-Witness Height: Positions optic at 1.22 inches centerline, aligning perfectly with standard-height backup iron sights on most modern sporting platforms
- Improved Ergonomics: Reduces sight height by 0.42 inches compared to factory mount, enabling natural head position and consistent cheek weld without stock modifications
- Aircraft-Grade Construction: Machined from 7075-T6 aluminum with black anodized finish for durability and corrosion resistance in field conditions
- Complete Mounting Hardware: Includes all necessary mounting screws and T10 Torx tool for straightforward installation and adjustment
Important Compatibility Notes
This mount is designed exclusively for Holosun AEMS optics and will NOT fit other Holosun models.
Compatible with:
- All AEMS CORE models
- All standard AEMS models with serial numbers above 10,000
Early Production Note: The first AEMS units manufactured (generally those with serial numbers below 10,000) featured slightly different mounting screw spacing. If you have an early-production AEMS and this mount does not fit, contact Holosun directly—they have offered free optic exchanges to customers affected by this fitment issue.
Why We Carry It
The AEMS Low Mount solves a common problem many shooters face when mounting modern enclosed optics on traditional sporting platforms. While the AEMS ships with a 1.63-inch lower 1/3 co-witness mount ideal for AR-15 style rifles, this height can feel unnaturally tall on firearms with different stock designs. By reducing the centerline height by 0.42 inches, this mount brings the optic down to absolute co-witness level—meaning your red dot sits at the exact same height as your iron sights rather than hovering above them. This configuration is particularly valuable for lever-action rifles, pump shotguns, and other platforms where the original mount height compromises shooting comfort and speed.
Frequently Asked Questions
How much lower is this mount compared to the factory AEMS mount?
This low mount positions the optic at 1.22 inches above the rail, compared to 1.63 inches with the factory lower 1/3 co-witness mount—a reduction of 0.42 inches. This brings the optic down to absolute co-witness height rather than lower 1/3 co-witness.
Will this mount work on my specific firearm platform?
This mount works on any firearm with a standard Picatinny or Weaver-style rail. It’s particularly beneficial for lever-action rifles, shotguns, and pistol-caliber carbines, where the taller factory mount may feel awkward. For AR-15 style rifles with standard-height iron sights, the factory 1.63-inch mount typically provides better ergonomics.
How do I know if my AEMS is compatible with this mount?
Check your AEMS serial number, which is located on the optic body. If your serial number is above 10,000, or if you have an AEMS CORE model, this mount will fit properly. Early units below serial number 10,000 may have different screw spacing and require contacting Holosun for resolution.
Spec Sheet
- Product Model: AEMS-LOW-MOUNT
- Mounting Height: 1.22 inches (centerline above rail)
- Co-Witness Type: Absolute co-witness
- Material: 7075-T6 Aluminum
- Finish: Black anodized
- Rail Interface: Picatinny/Weaver compatible
- Dimensions: 2.7″ L × 2.2″ W × 1.64″ H
- Included Items: Mounting screws, T10 Torx tool
- Compatibility: AEMS CORE (all models), AEMS with serial number above 10,000
- Weight Reduction vs. Factory Mount: 0.42 inches lower profile
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