The Holosun AEMS Micro Red Dot Sight (AEMS-MICRO-RD) is a miniature enclosed-emitter red dot sight with Holosun's Multi-Reticle System — a 2 MOA red dot, a 32 MOA circle, or both as a circle-dot — behind a 0.71 × 0.71 in (18 × 18 mm) window, weighing 2.1 oz (60 g) and supplied with an RMSc adapter plate.
It is the smallest enclosed sight Holosun makes. The sealed emitter cannot be blocked by rain, mud or lint, which is the practical advantage of an enclosed design over an open reflex at this size. Solar Failsafe, Shake Awake and Lock Mode back a CR1620 cell rated for up to 100,000 hours, and the 7075 aluminium housing is IPX8 rated and tested to 5000G of vibration.
How It Compares
The same sight is offered as the AEMS Micro green dot sight and the AEMS Micro gold dot sight. For a larger viewing window in the same enclosed family, see the AEMS Macro red dot sight, and for a native RMSc-footprint enclosed sight the EPS Carry red dot sight mounts without an adapter. Browse all offset and piggyback red dot sights and enclosed red dot sights.
Ideal For
- Offset and piggyback mounting on a rifle, where its size and weight barely register
- Airsoft gas blowback pistols and lightweight training rigs
- Section 1 long-barrelled pistols and revolvers, and licensed pistol setups in Northern Ireland
- Rimfire and .22LR pistol-calibre builds where a tiny sealed sight suits
Key Features
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Reticle: Multi-Reticle System — 2 MOA red dot, 32 MOA circle, or circle-dot
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Emitter: fully enclosed and sealed, so rain, mud and lint cannot block the reticle
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Size: 0.71 × 0.71 in (18 × 18 mm) window at 2.1 oz (60 g)
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Electronics: Solar Failsafe, Shake Awake and Lock Mode, up to 100,000 hours on a CR1620
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Illumination: 12 settings — 8 daylight and 4 night-vision compatible
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Mount: native AEMS Micro footprint with an RMSc adapter plate included
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Housing: 7075 aluminium, IPX8 rated, 5000G vibration resistance
Technical Specifications
| Optic Type |
Enclosed-emitter red dot sight, 1x (non-magnified) |
| Reticle |
Multi-Reticle System — 2 MOA red dot / 32 MOA circle / circle-dot |
| Window Size |
0.71 × 0.71 in (18 × 18 mm) |
| Illumination |
12 settings — 8 daylight / 4 night-vision compatible |
| Click Value |
1 MOA per click |
| Adjustment Range |
±30 MOA windage and elevation |
| Battery |
CR1620 coin cell with Solar Failsafe, up to 100,000 hours runtime |
| Power Management |
Shake Awake motion activation and Lock Mode |
| Mount |
AEMS Micro footprint, RMSc adapter plate included |
| Housing / Finish |
7075 aluminium, IPX8 rated, 5000G vibration resistance |
| Eye Relief |
Unlimited (non-critical eye relief) |
| Weight |
2.1 oz (60 g) |
| SKU / MPN |
AEMS-MICRO-RD / AEMS-MICRO-RD |
What's Included
- Holosun AEMS Micro enclosed red dot sight
- RMSc adapter plate, CR1620 battery, adjustment tool and manual
Warranty
Covered by Holosun's manufacturer warranty, handled in the UK by Xtreme Tactical.
UK Delivery & Support
UK-stocked and dispatched tracked from our UK warehouse — no import duties or customs delays — backed by UK-based support and Holosun's warranty.
Frequently Asked Questions
What footprint does the Holosun AEMS Micro use, and will it fit an RMSc-cut slide?
The Holosun AEMS Micro has its own native AEMS Micro footprint, and it is supplied with an RMSc adapter plate so it can be fitted to RMSc-cut slides. It will not bolt directly to an RMR-cut slide without the appropriate plate.
What battery does the Holosun AEMS Micro take?
The Holosun AEMS Micro runs on a single CR1620 coin cell and is rated for up to 100,000 hours. Solar Failsafe supplements the cell in daylight and will keep the sight running if the battery fails, and Shake Awake switches the reticle off when the gun is still.
What reticles does the Holosun AEMS Micro offer?
The Holosun AEMS Micro uses the Multi-Reticle System, which switches between a 2 MOA red dot on its own, a 32 MOA circle on its own, and both together as a circle-dot.
Is the Holosun AEMS Micro enclosed, and what is it rated to?
Yes, the Holosun AEMS Micro has a fully enclosed emitter. The 7075 aluminium housing is rated IPX8 for water immersion and tested to 5000G of vibration, so the reticle cannot be blocked by rain, mud or pocket lint the way an open-emitter sight can.
Should I choose the AEMS Micro or the AEMS Macro?
Choose the AEMS Micro for the smallest, lightest enclosed sight, at 0.71 × 0.71 in (18 × 18 mm) and 2.1 oz (60 g), which suits offset rifle mounting and small pistols. Choose the AEMS Macro if you want a noticeably larger viewing window and can accept the extra size and weight.
Can the Holosun AEMS Micro be mounted at 45 degrees as an offset sight?
Yes. The size and weight of the Holosun AEMS Micro make it a common choice for offset or piggyback mounting alongside a magnified optic, provided you use an offset mount that matches its AEMS Micro or RMSc footprint.
