Holosun AEMS CORE X2 Advanced Enclosed Micro Sight - Red Reticle
The Holosun AEMS CORE X2 Red is a compact enclosed red dot built for rifles that want a clean, wide sight picture without a lot of extra fuss. It runs a crisp 2 MOA red dot that’s quick to pick up, and the large window makes it easy to stay on target while moving or scanning. The enclosed design keeps the emitter protected from dirt, rain, and knocks, so it’s more “grab and go” than something you need to baby. You also get shake-awake and long battery life, so it’s ready when you are without constant adjustments. Built from tough 7075 aluminum with a lower 1/3 co-witness mount included, it’s basically a simple, rugged rifle optic with modern features baked in.
-Nathan (Technical Advisor)
The Holosun AEMS CORE X2 takes everything shooters loved about the original AEMS and pushes it further, delivering enhanced performance in a compact, rugged design. With an advanced optical system that reduces parallax by 50%, the CORE X2 offers faster, more accurate target acquisition — giving you the edge when split-second decisions matter.
Built from 7075-T6 aluminium and finished with MAO coating, the housing is both lightweight and incredibly tough. The fully enclosed design, combined with an IP67 waterproof rating and 1000G vibration resistance, ensures reliable performance in the harshest environments.
At the heart of the upgrade is an all-new four-post, lower 1/3 co-witness mount, offering ideal sight height for modern shooting setups. It’s also backwards compatible with original AEMS mounts, giving you flexibility without compromise. The optic features a generous 1.1 × 0.87-inch window and crystal-clear multilayer reflective glass, packed into a compact body measuring just 2.48 × 1.54 × 2.63 inches and weighing only 9.8 oz.
With unlimited eye relief, parallax-free performance, and a clean 1x magnification, the sight picture is fast, clear, and intuitive. Power is handled by a single CR2032 battery, delivering up to 50,000 hours of battery life, while 10 daylight and 2 night vision brightness settings ensure visibility in any condition.
Holosun’s signature Shake Awake™ Technology comes as standard — automatically powering down the LED when inactive, and instantly reactivating it with the slightest movement. It’s smart, seamless, and always ready when you are.
Optical Specs
- Reticle: 2 MOA Dot
- Light Wavelength: 650nm
- Reticle Colour: Red
- Parallax Free: Yes
- Unlimited Eye Relief: Yes
- Magnification: 1x
- Multi-Coatings: Yes
Electronic Specs
- Power Source: Battery
- Battery Type: CR2032
- Battery Life: 50,000 hours
- Thermal Modes: N/A
- Digital Modes: N/A
- Video Recording: N/A
- Screen Refresh Rate: N/A
- Digital Screen: N/A
- Brightness Setting: 10 Daylight & 2 Night Vision
Physical Specs
- Window Size: 1.1 × 0.87 in
- Dimensions: 2.48 × 1.54 × 2.63 in
- Weight: 9.8 oz
Mechanical Specs
- Housing Material: 7075 T6 Aluminium
- Surface Finish: MAO
- Adjustment per Click: 0.5 MOA
- Windage & Elevation Travel Range: ±50 MOA
Environment Specs
- Storage Temperature: -40℃ to 70℃
- Working Temperature: -30℃ to 60℃
- Submersion: IP67 Rated
- Vibration Resistance: 1000G
- Advanced optical system with reduced parallax
- Fully enclosed, compact design
- Lower 1/3 co-witness four-post mount (included)
- Backwards compatible with original AEMS mounts
- Shake Awake™ Technology for extended battery life
- Rugged 7075-T6 aluminium housing
- Durable MAO surface finish
- Multilayer reflective glass for enhanced clarity
- IP67 waterproof and dustproof rating
- High resistance to shock and vibration
- Long-lasting, reliable performance in all conditions
- 1x Holosun AEMS CORE X2 Advanced Enclosed Micro Sight - Red Reticle
- 1x 1.63 in Optic Mount
- 1x Multi-tool
- 1x Wrench
- 1x Cleaning Cloth
1. What reticle does the AEMS CORE X2 Red use?
It uses a 2 MOA red dot for fast, precise aiming.
2. Is it an enclosed optic?
Yes, the emitter is fully enclosed to protect it from dust, rain, and impact.
3. Does it come with a mount?
Yes, it includes a lower 1/3 co-witness Picatinny mount built for modern rifle setups.
4. What is shake-awake?
It’s a motion sensor that powers the optic on when moved and puts it to sleep when idle to save battery.
5. How long does the battery last?
Up to about 50,000 hours depending on brightness and usage settings.
6. What rifles is it meant for?
It’s designed for AR-style rifles, shotguns, and other long guns using Picatinny rails.
7. Is it good for magnifiers?
Yes, it works well in 1x + magnifier setups thanks to its clear window and enclosed design.
8. What makes it different from older AEMS models?
The X2 version improves optical performance, mounting design, and overall durability compared to earlier versions.
9. Is it durable?
Yes, it’s built from 7075-T6 aluminum and designed for shock, weather, and field use.
10. What’s the main advantage of the AEMS CORE X2 Red?
It combines a wide field of view, enclosed durability, long battery life, and automatic power features in a compact rifle optic that’s simple to run in real-world conditions.
- Holosun 10 years / product lifetime warranty. Read more here