Description
This compact enclosed red dot delivers twice the viewing area of standard micro sights with 50,000 hours of battery life in a rugged aluminum housing.
Fast target acquisition starts with a clear, unobstructed view. The Holosun AEMS Core Green provides a 2x larger lens surface area compared to traditional 20mm micro sights, giving you enhanced situational awareness without adding unnecessary bulk to your rifle or carbine. The enclosed emitter design protects the LED from environmental contamination while the precision 2 MOA green dot ensures crisp aiming points from close quarters to extended ranges. With Shake Awake technology and exceptional battery life, this optic stays ready when you need it most.
Key Features
- Enlarged Viewing Window: Features a 1.1″ x 0.87″ sight window that provides double the lens surface area of standard 20mm micro sights for improved field of view and faster target transitions
- Enclosed Emitter Protection: Fully enclosed LED system keeps out dust, water, and debris while maintaining IP67 waterproof rating for reliable performance in harsh conditions
- Extended Battery Performance: CR2032 battery delivers up to 50,000 hours of continuous operation at medium brightness, with side-mounted battery tray for tool-free changes without removing the optic
- Shake Awake Technology: Motion-activated LED automatically powers on from sleep mode and recalls your last brightness setting, with programmable timeout intervals from 10 minutes to 12 hours
Important Compatibility Notes
The AEMS-Core includes a fixed lower 1/3 co-witness mount (1.63″ optical centerline height) that attaches to standard Picatinny rails. Note the following:
- Mount is integrated and cannot be removed without aftermarket adapter plates
- Early production units (serial numbers below 10,000) may have different rear mounting hole spacing that could affect compatibility with some aftermarket mounts
- The included mount provides lower 1/3 co-witness; for absolute co-witness or higher mounting positions, aftermarket mounts or adapter plates are required
- Compatible with rifles, carbines, shotguns, and pistol-caliber carbines with Picatinny rail systems
Why We Carry It
Holosun introduced the AEMS-Core as a value-oriented alternative to their flagship AEMS, removing premium features like the solar panel, multi-reticle system, and flip-down lens covers while maintaining the same large viewing window and enclosed durability. The Core model uses cast aluminum construction—the same material found in many Aimpoint optics—rather than the machined 7075 T6 aluminum of the standard AEMS. This manufacturing approach allows Holosun to offer the AEMS viewing experience at a cheaper price than the full-featured version. We stock this optic because it delivers exceptional value for shooters who want the reliability and protection of an enclosed emitter without paying for features they may not need, making it particularly popular for home defense rifles, range guns, and secondary firearms where simplicity is preferred.
Frequently Asked Questions
How does the green LED compare to red for daytime visibility?
Green wavelength (540nm) LEDs typically appear brighter to the human eye than red at equivalent power levels, which can improve visibility in bright daylight conditions. The green option is especially helpful for shooters with red-green color blindness. The AEMS-Core-Green provides 12 brightness settings, including 10 for daylight use and 2 night vision-compatible settings, ensuring adequate brightness across all lighting conditions.
What’s the difference between the AEMS-Core and the standard AEMS?
The AEMS-Core strips away several features to reduce cost while maintaining the same large viewing window and enclosed design. The Core lacks the solar backup panel, multi-reticle system (only 2 MOA dot available), and removable flip-down lens covers found on the standard AEMS. It also uses cast aluminum construction instead of machined 7075 T6 aluminum. The Core offers 10 daylight and 2 NV brightness settings versus 8 daylight and 4 NV on the standard model. Battery life and optical clarity remain equivalent between both versions.
Will this optic hold zero on high-recoil rifles or under hard use?
Yes. User testing documented in multiple reviews shows the AEMS-Core maintaining zero through thousands of rounds on AR-15s, pistol-caliber carbines, and even after drop tests where the optic landed directly on concrete. The cast aluminum housing and enclosed design provide substantial protection for the internal components. Elevation adjustments provide consistent 0.5 MOA clicks, though some users report that the windage adjustment can feel less tactile than the elevation turret. For best results, apply non-permanent threadlocker to mounting hardware as recommended in the manual.
Spec Sheet
OPTICAL DATA
- Reticle: 2 MOA Dot
- Light Wavelength: 540nm
- Reticle Color: Green
- Parallax Free: Yes
- Unlimited Eye Relief: Yes
- Magnification: 1x
- Multi-Coatings: Yes
ELECTRONIC DATA
- Power Source: Battery
- Battery Type: CR2032
- Battery Life (Hours): 50,000
- Brightness Settings: 10 Daylight & 2 Night Vision
MECHANICAL DATA
- Housing Material: Durable Aluminum
- Surface Finish: MAO (Micro Arc Oxidation)
- Adjustment per Click: 0.5 MOA
- Windage & Elevation Travel Range: ±50 MOA
PHYSICAL DATA
- Window Size: 1.1″ × 0.87″
- Dimensions (inches): 2.2 × 1.54 × 1.7
- Weight (ounces): 3.9
ENVIRONMENT DATA
- Storage Temperature: -40℃ to 70℃
- Working Temperature: -30℃ to 60℃
- Submersion Rating: IP67
- Vibration: 1000G
IN THE BOX
- Lower 1/3 Co-witness Mount
- Multi Tool (T10 Torx)
- User Manual
- CR2032 Battery
- Lens Cloth
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