Trijicon RMR HD Red Dot Sight 55 MOA Circle 1.0 MOA Dot Adjustable LED Reticle
At a glance
- Sight type
- Open reflex
- Reticle
- Circle dot
- Dot size
- 1 MOA / 55 MOA ring
- Footprint
- RMR
- Fits
- Pistol
- Delivery within 10 business days
- Estimated delivery:
- 30-day returns
- UK-based specialist support
- Pay in 3 interest-free payments of £326.66 with Klarna
- Save 5% Any 2 items
- Most PopularSave 10% Any 3 items
- Save 15% Any 4+ items
Applied automatically at checkout to any mix of products in your cart.
Description
Trijicon RMR HD Red Dot Sight is the platform's biggest redesign: a larger window to look through, a battery that loads from the top, and a light sensor that faces forward so a bright muzzle or a dark target does not fool the automatic brightness. This is the fine-dot version — a 55 MOA segmented circle around a 1.0 MOA centre dot, which toggles to a clean dot-only reticle when the circle is in the way.
How It Compares
If a single dot and nothing else is what you want, the RMR Type 2 does that. For a bigger competition window, the Trijicon SRO. There is more in the Trijicon range and among our other pistol dot sights, and if the dot sizes mean nothing to you yet, read what MOA means.
Ideal For
- Shooters who want the circle for speed and the fine dot for precision
- Duty and defensive pistols on RMR-cut slides
- Work that switches between close targets and longer shots
- Anyone tired of pulling an optic off to change the battery
Key Features
- 55 MOA segmented circle with a 1.0 MOA centre dot, toggling to dot-only
- Forward-facing light sensor for the automatic brightness
- 9 brightness settings including super-bright and night-vision modes
- Top-loading CR2032 rated up to about 3 years and changed without a re-zero
- Forged 7075-T6 aluminium housing, submersible to 20 m
- Tool-less zeroing with tactile, audible 1 MOA clicks
Technical Specifications
- SKU / MPN / UPC: SKU RMHD1-C-3200001 / MPN RMHD1-C-3200001 / UPC 719307619210
- Reticle: 55 MOA segmented circle with 1.0 MOA centre dot; toggles to dot-only
- Magnification: 1x, parallax-free, unlimited eye relief
- Brightness settings: 9, incl. super-bright and night-vision modes
- Windage / elevation per click: 1 MOA, tool-less
- Battery: 1 × CR2032, top-loading
- Battery life: up to ~3 years
- Housing: Forged 7075-T6 aluminium
- Waterproof: Submersible to 20 m (66 ft)
- Footprint: Trijicon RMR
What's Included
- Trijicon RMR HD red dot sight
- Mounting hardware and tool
- CR2032 battery
Why buy from Red Dot Sight UK
A UK specialist in red dot sights, holographic sights and magnifiers from Trijicon, EOTech, Holosun and SIG Sauer — genuine optics, secure checkout and UK-based support.
Technical Specifications
| Sight type | Open reflex |
|---|---|
| Dot colour | Red |
| Reticle | Circle dot |
| Dot size | 1 MOA / 55 MOA ring |
| Footprint | RMR |
| Fits | Pistol |
| Brand | Trijicon |
| Type | Red Dot Sight |
| SKU | RMHD1-C-3200001 |
Compatibility
Mounting Footprint
Confirm the optic's footprint matches your firearm's cut or plate.
Rail Compatibility
Pair with a matching Picatinny mount for rifle and carbine platforms.
Always confirm your firearm's optic cut or rail matches the footprint before purchase. Our guide to red dot sight footprints explains how to match an optic to your firearm. If unsure, contact our team for fitment advice.
Complete Your Setup
Product FAQs
What has changed on the Trijicon RMR HD against the original RMR?
The RMR HD brings a larger window, a top-loading battery, a forward-facing light sensor and a reticle you can switch between circle-dot and dot-only. It is the platform's biggest redesign.
Can I turn the circle off on the RMR HD?
Yes, the Trijicon RMR HD toggles between the 55 MOA segmented circle-dot and a clean 1.0 MOA dot on its own. That is useful when the circle is in the way of a precise shot.
Do I need tools to zero the Trijicon RMR HD?
No, windage and elevation on the RMR HD adjust tool-lessly in 1 MOA clicks you can feel and hear. Zeroing needs no separate tool.
Will the RMR HD fit my RMR-cut slide?
The Trijicon RMR HD keeps the Trijicon RMR footprint. It is still worth checking your slide's cut against that footprint before ordering.
What reticle does this Trijicon RMR HD use?
This version uses a 55 MOA segmented circle around a 1.0 MOA centre dot. The 1.0 MOA dot is the fine option for precision, and the reticle toggles to dot-only.
Does the Trijicon RMR HD adjust brightness automatically?
Yes, the RMR HD uses a forward-facing light sensor for automatic brightness, so a bright muzzle or a dark target does not fool it. There are 9 brightness settings including super-bright and night-vision modes.
What battery does the RMR HD take and how long does it last?
The Trijicon RMR HD runs on a single CR2032 rated for up to about 3 years. It loads from the top, so the battery is changed without a re-zero.
How waterproof is the Trijicon RMR HD?
The Trijicon RMR HD is submersible to 20 m, which is 66 ft. Its housing is forged 7075-T6 aluminium.
What are the click values on the RMR HD?
Windage and elevation adjust in 1 MOA clicks. They are tactile and audible, and no tool is needed to make the adjustment.
What comes in the box with the Trijicon RMR HD?
The box contains the Trijicon RMR HD red dot sight, mounting hardware and a tool, plus a CR2032 battery.
How does the RMR HD compare to the RMR Type 2 and the SRO?
The RMR HD offers a circle-dot reticle and a larger window, while the RMR Type 2 gives a single dot and nothing else and the SRO offers a bigger competition window. All three use Trijicon's pistol dot platform.
How long will my Trijicon RMR HD take to arrive?
Estimated UK delivery is 10 business days. It ships as genuine UK stock, so there are no import fees to pay on arrival, and checkout is secured by Shopify.
No questions match your search.
Further reading
Guides picked for this optic - the brand range, the format, and how to set it up.
You may also like
Recently Viewed
Shop Related Categories
Shipping, Returns & Warranty
Orders are dispatched from the UK. Full details, options and timescales are on our shipping policy.
If something isn't right, our returns policy explains how to arrange a return or exchange.
Every order is covered by our 30-day returns policy and your statutory consumer rights. Some products are also supplied with a manufacturer warranty; that cover is provided by the manufacturer rather than by Red Dot Sight UK and varies by brand.