HolosunRed Dot Sight
Holosun HS510C Red Dot Sight Multi-Reticle System Solar Failsafe Black
- Reticle
- Red Multi-Reticle System — selectable 2 MOA dot, 65 MOA circle,...
- Electronics
- Solar Failsafe supplemental power plus Shake Awake motion activation with memory...
- Illumination
- 12 brightness settings — 10 daylight and 2 night-vision compatible —...
- Emitter
- 650 nm red LED, up to 50,000 hours of battery life
In stock — 7–10 business day delivery
Tracked delivery, estimated 7–10 working days
Want to know when it's back? Email us and we'll let you know
Multi-buy savings
Mix any optics and lights — applied automatically
- 5%2 items
- 10%3 items
- 15%4 or more
Applied automatically at checkout — no code needed. Accessories such as tailcaps, switches and mounts aren't included.
Complete your setup
- Shipped from the UK with tracked delivery
- 30-day returns on unused items
- Warranty support — contact us first
Delivery
Every order is shipped from the UK with tracked delivery. Estimated delivery time is 7–10 working days, and you will receive tracking details by email as soon as your order is on its way.
Returns
Unused items in their original packaging can be returned within 30 days. Email info@opticstrader.co.uk first and we will confirm the return details.
Warranty
Every product is new and boxed. If anything goes wrong, contact us first and we'll help with a manufacturer warranty claim where one applies.
The Holosun HS510C Red Dot Sight (HS510C) is a 1x open reflex red dot sight with Holosun's Multi-Reticle System — a 2 MOA red dot, a 65 MOA circle, or both together as a circle-dot — behind a 0.91 × 1.26 in (23 × 32 mm) window, on an integrated quick-detach Picatinny mount. The housing is finished in black.
Solar Failsafe supplements the side-loading CR2032 with light, and Shake Awake puts the optic to sleep when it is still and wakes it on movement, for up to 50,000 hours of runtime. A titanium protective hood shields the emitter, and the aluminium housing is rated IP67 and tested to 5000G of vibration.
How it compares
For magnification behind the dot, the HS510C red dot sight and HM3X magnifier combo bundles the same sight with a 3x flip-to-side magnifier. The same optic is available in HS510C red dot sight in Flat Dark Earth and HS510C green dot sight in Flat Dark Earth. For a green reticle in black, see the HE510C green dot sight. Browse all shotgun red dot sights and straight-pull rifle optics.
Ideal for
- Practical shotgun and 3-Gun, where the 65 MOA circle drives fast close-range hits
- Civilian Service Rifle and practical rifle on straight-pull AR-pattern carbines
- Pistol-calibre carbines and rimfire rifles running a Picatinny rail
- Airsoft skirmishing and training guns that live outdoors in poor weather
Key features
- Reticle: Red Multi-Reticle System — selectable 2 MOA dot, 65 MOA circle, or circle-dot
- Electronics: Solar Failsafe supplemental power plus Shake Awake motion activation with memory function
- Illumination: 12 brightness settings — 10 daylight and 2 night-vision compatible — with manual, automatic and Lockout modes
- Emitter: 650 nm red LED, up to 50,000 hours of battery life
- Housing: aluminium with a titanium protective hood, black MAO finish, IP67 rated
- Mount: integrated quick-detach Picatinny mount at 1.41 in (35.8 mm) co-witness dot height
- Battery: side-loading CR2032 tray, changeable without removing the optic
| Optic Type | Open reflex red dot sight, 1x (non-magnified) |
| Reticle | Multi-Reticle System — 2 MOA red dot / 65 MOA circle / circle-dot |
| Reticle Colour | Red |
| Light Source | 650 nm red LED |
| Window Size | 0.91 × 1.26 in (23 × 32 mm) |
| Lens Coating | Multi-coated |
| Parallax | Parallax-free |
| Eye Relief | Unlimited (non-critical eye relief) |
| Illumination | 12 settings — 10 daylight / 2 night-vision compatible; manual and automatic modes; Lockout Mode |
| Click Value | 0.5 MOA per click |
| Adjustment Range | ±50 MOA windage and elevation |
| Battery | CR2032 in a side-loading tray, up to 50,000 hours at brightness setting 6 |
| Solar Support | Solar Failsafe supplemental power |
| Power Management | Shake Awake motion activation, auto-off and memory function |
| Mount | Integrated quick-detach Picatinny mount, 1.41 in (35.8 mm) co-witness dot height |
| Housing / Finish | Aluminium with titanium protective hood, black MAO finish |
| Water Resistance | IP67 water and dust resistant |
| Vibration Rating | 5000G |
| Operating Temperature | -30 °C to 60 °C |
| Length | 3.30 × 1.68 × 1.78 in (84 × 43 × 45 mm) |
| Weight | 4.94 oz (140 g) |
| MPN / UPC | HS510C / 605930624571 |
What reticle options does the Holosun HS510C Red Dot Sight have?
The Holosun HS510C Red Dot Sight 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. The 65 MOA circle is the fast option for close shotgun and carbine work, and the 2 MOA dot is the precise one.
Is the Holosun HS510C suitable for a shotgun?
Yes. The Holosun HS510C has an integrated quick-detach Picatinny mount, an open window that keeps both eyes working, and a 65 MOA circle that suits fast target pick-up, which is why the HS510C family is a common choice for practical shotgun in the UK. It needs a Picatinny rail section on the receiver or rib.
How long does the battery last on the Holosun HS510C?
The Holosun HS510C runs up to 50,000 hours on a single CR2032 at brightness setting 6. Solar Failsafe adds supplemental power in daylight and will keep the sight running if the cell fails, and Shake Awake shuts the reticle off when the gun is still.
Will the Holosun HS510C co-witness with AR-pattern iron sights?
Yes. The integrated quick-detach mount on the Holosun HS510C sets the dot at 1.41 in (35.8 mm), Holosun's stated co-witness dot height, so AR-height iron sights line up in the window on a standard flat-top receiver.
Is the Holosun HS510C night-vision compatible?
Yes. Two of the twelve brightness settings on the Holosun HS510C are night-vision compatible, so the reticle can be dimmed far enough to use behind a night vision device.
Can I change the battery on the Holosun HS510C without losing zero?
Yes. The Holosun HS510C uses a side-loading CR2032 tray, so the cell can be replaced with the optic still mounted and zeroed.
Every order is shipped from the UK with tracked delivery, with an estimated delivery time of 7–10 working days. Unused items in their original packaging can be returned within 30 days for a full refund.