Holosun HS510C Reflex Red Dot Sight with HM3X Magnifier
14 Day Returns
FREE Shipping via Royal Mail Special Delivery or Tracked 24
Ships to UK Mainland, Northern Ireland, Jersey and Guernsey
5% OFF ALL ORDERS Code at checkout: XTREME5
The Holosun HS510C Reflex Red Dot Sight with HM3X 3× Magnifier Combo offers a versatile optical setup for rifles and carbines equipped with Picatinny rails. The HS510C red dot features Holosun’s Multi-Reticle System (MRS) with a 2 MOA dot, a 65 MOA circle, and a combined reticle, plus Solar Failsafe™ & Shake Awake® for reliable operation and up to ~50,000 hours of battery life on a CR2032 battery. Paired with the HM3X 3× magnifier with flip-to-side QD mount, this combo delivers both quick 1× target acquisition and enhanced 3× precision when needed. The full package includes mounting hardware and a protective case.
Key Attributes for the Holosun HS510C Reflex Red Dot Sight with HM3X 3× Magnifier Combo
- Brand: Holosun
- Product Name: HS510C Reflex Red Dot Sight & HM3X 3× Magnifier Combo
- Model: 510C-HM3X Combo
- MPN: 510C&HM3X
- UPC: 605930625721
- Condition: New
- Product Type: Red Dot Sight & Magnifier Combo
- Red Dot Magnification: 1× (HS510C)
- Magnifier Magnification: 3× (HM3X)
- Reticle Type (HS510C): Multi-Reticle System (2 MOA Dot, 65 MOA Circle, or Combined)
- Reticle Color: Red
- Brightness Settings (HS510C): 12 (10 daylight + 2 night-vision compatible)
- Power Source (HS510C): CR2032 coin battery
- Battery Life (HS510C): ~50,000 hours
- Mounting Interface: Picatinny rail mount (QD quick detach with spacer for absolute & lower 1/3 co-witness)
- Magnifier Mount: Ambidextrous flip-to-side QD mount
- Eye Relief (HM3X): ~2.75 in (~70 mm)
- Field of View (HM3X): ~7 ° (37 ft @ 100 yds)
- Housing Material: Durable aluminum & titanium hood on HS510C (titanium hood per typical spec)
- Water & Shock Resistance: IP67 weather-resistant construction
- Available Colors:
- Black
- Finish: Matte
- Country of Manufacture: China
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Frequently asked questions
What is the return policy?
Our goal is for every customer to be totally satisfied with their purchase. If this isn’t the case, let us know and we’ll do our best to work with you to make it right. 14 day return if you are not happy. Things must be unopened and in original packaging, unless it is faulty.
Are any purchases final sale?
No, you can cancel at anytime and will receive a full refund. We will always work with you.
When will I get my order?
Shipping & Delivery
- We work quickly to process and ship your order as soon as possible.
- Once your order has shipped, you’ll receive an email with full tracking details.
Delivery Times
- Standard delivery from our USA suppliers: approximately 10 business days (usually within a week)
- UK Stock Collection items ship within 24 hours.
Stock & Sourcing
- Due to limited demand, we do not hold inventory in the UK. All products ship direct from our USA suppliers to us then we ship to you so you don’t pay any imports fees.
Where are your products manufactured?
Our products are manufactured both in USA and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.
How much does shipping cost?
Shipping & Insurance
FREE Shipping on all orders. Shipping with Royal Mail Tracked and Special Delivery. All orders are insured.
Do your products include manufacturer warranties?
Yes. All eligible products are covered by the original manufacturer’s warranty, unless otherwise stated on the product page. Warranty terms vary by brand—please refer to the manufacturer’s official documentation for details. Xtreme Tactical is a retailer we do not cover warranty issues. We will help to facilitate any issues.