The Holosun HS515CM Red Dot Sight (HS515CM) is a 1x micro rifle red dot sight with the Multi-Reticle System — a 2 MOA red dot, a 65 MOA circle, or both together as a circle-dot — behind a 0.78 in (19.8 mm) window, on a quick-detach Picatinny mount at 1.63 in (41.4 mm) lower-1/3 co-witness. UPC 605930624700.
It is the duty-grade micro in the 515 series and it arrives ready for hard use rather than needing parts added: the QD lever mounts and remounts it on any Picatinny rail, and rotating protective lens caps with an anti-reflection kill flash guard the glass and stop the front lens flaring back at you. The Multi-Reticle System covers both speed and precision, Solar Failsafe backs up the CR2032 for up to 50,000 hours with Shake Awake, and the 7075 aluminium housing carries a MAO finish rated IP68 and IPX8.
How It Compares
For the same optic in a lighter, stronger titanium housing, the HS515GM titanium red dot sight weighs 3.74 oz. For a fully enclosed sight instead of an open emitter, the HE512T red dot sight seals the emitter in titanium. For a wide-window open reflex sight, see the HS510C red dot sight. At 1.63 in it pairs with lower-1/3 magnifiers such as the HM3X-Micro 3x magnifier. Browse all Holosun rifle red dot sights and our straight-pull rifle optics.
Ideal For
- Civilian Service Rifle and practical rifle on straight-pull AR-pattern carbines
- Builds that need a quick-detach mount and returnable zero between rifles
- Practical shotgun and 3-Gun, where the 65 MOA circle drives fast close hits
- Pistol-calibre carbines and rimfire rifles running a Picatinny rail
Key Features
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Reticle: red Multi-Reticle System — selectable 2 MOA dot, 65 MOA circle, or circle-dot
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Emitter: 650 nm red LED
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Window: 0.78 in (19.8 mm) diameter
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Mount: quick-detach Picatinny mount at 1.63 in (41.4 mm) lower-1/3 co-witness
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Lens protection: rotating protective lens caps with an anti-reflection kill flash
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Electronics: Solar Failsafe supplemental power plus Shake Awake motion activation
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Battery: CR2032, up to 50,000 hours of runtime
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Housing: 7075 aluminium with a MAO finish, rated IP68 and IPX8
Technical Specifications
| Optic Type |
Micro rifle red dot sight, 1x (non-magnified) |
| Reticle |
Multi-Reticle System — 2 MOA dot / 65 MOA circle / circle-dot |
| Reticle Colour |
Red |
| Light Source |
650 nm red LED |
| Window Size |
0.78 in (19.8 mm) diameter |
| Mount |
Quick-detach Picatinny, 1.63 in (41.4 mm) lower-1/3 co-witness |
| Lens Caps |
Rotating protective caps with anti-reflection kill flash |
| Battery |
CR2032, up to 50,000 hours |
| Power |
Battery with Solar Failsafe supplemental power |
| Power Management |
Shake Awake motion activation |
| Housing / Finish |
7075 aluminium, MAO finish |
| Water Resistance |
IP68 / IPX8 |
| Dimensions |
2.75 × 1.43 × 1.63 in (70 × 36 × 41 mm) |
| MPN / UPC |
HS515CM / 605930624700 |
What's Included
- Holosun HS515CM red dot sight with quick-detach Picatinny mount
- Rotating protective lens caps with kill flash
- Multi-tool, lens cloth and user 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 mount does the Holosun HS515CM come with?
The Holosun HS515CM Red Dot Sight is supplied with a quick-detach Picatinny mount that sets the reticle at 1.63 in (41.4 mm), which is lower-1/3 co-witness height on an AR-pattern rifle. No separate mount is needed.
What is the kill flash on the Holosun HS515CM?
The Holosun HS515CM ships with rotating protective lens caps that include an anti-reflection kill flash. It sits over the objective and prevents light reflecting off the front lens back towards the shooter or outwards, while the caps themselves protect the glass.
Will the Holosun HS515CM work with a magnifier?
Yes. At 1.63 in (41.4 mm) the Holosun HS515CM sits at lower-1/3 height, which matches lower-1/3 magnifiers such as the Holosun HM3X-Micro on the same rail.
What reticle options does the Holosun HS515CM have?
It uses the Multi-Reticle System, which switches between a 2 MOA red dot on its own, a 65 MOA circle on its own, and both together as a circle-dot.
What battery does the Holosun HS515CM use?
The Holosun HS515CM runs on a CR2032 cell, with Solar Failsafe supplementing it from ambient light and Shake Awake sleeping the reticle when the rifle is still, for a rated runtime of up to 50,000 hours.
Is the Holosun HS515CM waterproof?
Yes. The Holosun HS515CM is rated IP68 and IPX8 in a 7075 aluminium housing with a MAO finish, covering dust ingress and immersion in water.
