Trijicon MRO HD review: brilliant glass, one real flaw
Our verdict: 4.2/5. The Trijicon MRO HD is one of the best-looking sight pictures in the class: a 25 mm angled-glass window that owners describe as looking through a window rather than down a tube, a 68 MOA circle with a 2 MOA dot you can run either way, 16 brightness settings, a 7075-T6 forged and USA-made housing, and waterproofing to 30 metres. Against the original MRO it is essentially parallax free and it finally works properly behind a magnifier. It also has the pedigree to match the price: in 2023 the MRO HD was selected for the FBI's rifle red-dot program (source: Shooting Illustrated, Trijicon), a genuine duty credential rather than a marketing line. Two things keep it from a higher score, and both are real: at certain light angles you can see the LED emitter and part of the circuit board inside the optic, a flaw owners report from every star rating, and it costs T-2 money.
Owners rate it 4.5/5 across 29 reviews on OpticsPlanet. Four configurations are in stock: around $700 for the sight on its own, and mounted versions at around $730 , around $740 and around $750 . Prices verified August 18, 2026; confirm the current price on the retailer page.
How we reviewed it: a research-based review built from the retailer specification sheet and the verified owner-review record, read lowest rating first so the criticism is not filtered out. We have not bench-tested this unit ourselves; the score is our editorial opinion and owner ratings are shown attributed to their source. See how we evaluate.
First, which MRO can you actually buy?
Worth knowing before you shop: OpticsPlanet does not carry the standard non-HD MRO sight. Its Trijicon MRO product line is twelve items long and every one of them is a mount, cover, flip cap or anti-reflection device. The MRO optics on sale are the MRO HD reviewed here, the MRO HD combo set with the 3x magnifier, the MRO HD Patrol variants, and the separate MRO SD line starting around $600. If you searched for an MRO and landed here, the HD is the current sight, and by owner accounts it is the better one anyway.
What it is
MRO stands for Miniature Rifle Optic, and the HD is Trijicon's upgraded version for rifles, carbines and shotguns. The headline is the optical package: a 25 mm objective whose front lens is set at a deliberate angle to bounce the dot back to your eye, fully multi-coated broadband anti-reflective glass, and a large viewing area designed for both-eyes-open shooting. The reticle is a 68 MOA segmented circle with a 2 MOA centre dot, switchable so you can run the full circle-dot or the bare dot. It is forged from 7075-T6 aluminium and hard anodised, waterproof to 100 feet, and it uses sub-flush adjusters with 0.5 MOA clicks so a knock cannot walk your zero.
Why owners rate it: the window and the build
Clarity is the single most repeated praise, and it comes with useful comparisons attached. Owners rate the MRO HD's glass against the best EOTech and Aimpoint sights they own, and describe the large field of view as the thing that separates it from small-window dots when you are tracking a target with both eyes open. The upgrade over the first-generation MRO is concrete rather than marketing: an owner running both reports the HD is effectively parallax free where the original showed noticeable shift, with a rounder dot and less lens tint, and that it magnifies better than any reflex sight he has tried behind a Vortex Micro 3x or an EOTech G45. Durability reports are good too, with one owner logging about 800 rounds with no point-of-impact drift after a quick 50 yard zero, and shooters with mild astigmatism reporting a usable sight picture where other brands failed them.
“It has extremely clear glass and looking through the optic is more like looking through a window than through a small tube like other red dots. The parallax and inability to use a magnifier issues of the 1st gen are eliminated with the HD.”
GhillieScout (GA), via OpticsPlanet
The honest catch: the emitter reflection
This is the flaw you need to decide about, and it is not a rumour: it turns up in the most helpful negative review, in a one-star account of two consecutive units, and inside four and five-star reviews from owners who kept the sight. Under certain lighting, typically a bright source from around the 12 to 2 o'clock direction, you can see the LED emitter and part of the circuit board reflected inside the optic, and on some units a faint reticle image is visible even with the illumination off. One owner reports Trijicon replaced his unit and the replacement did the same thing, and says he was told on the phone that it was a known issue in some units; that is his account of a call rather than a company statement, so we report it as such. Other owners are equally direct in the other direction: they see it when they look for it, it has no effect on shooting, and one argues it is a trait of circle-dot reticles generally, pointing to the same effect on a Holosun 510C. The second criticism is simpler. Price is the most common complaint after the reflection, including from owners who liked the sight enough to buy several.
“The infamous circuit board reflection is there when you look for it in certain lighting conditions at certain angles, not a big deal to me, but I understand that it may bother some users… To me the biggest minus is the price.”
Geno (OR), verified owner, via OpticsPlanet
Trade-offs, plainly
- The emitter and circuit board can be visible at certain light angles, and a faint reticle is visible on some units even when the sight is off; owners split on whether it matters.
- It is expensive, in the Aimpoint T-2 price band, and that is the second most common complaint in the record.
- The mount is bundled rather than chosen: the sight sells in four configurations at four different prices, so the version that fits your rifle can cost more than the bare optic.
- At least one owner received a unit broken out of the box and had to pay his own postage to return it for service.
- The circle-dot reticle is thirsty: Trijicon rates it around 75 days of continuous use against roughly 2.5 years on the dot alone, and there is no shake-awake to save the battery when the rifle is idle.
Key specifications
| Magnification | 1x (true), infinite eye relief |
|---|---|
| Objective | 25 mm, angled glass with fully multi-coated broadband anti-reflective lenses |
| Reticle | 68 MOA segmented circle with a 2 MOA dot; circle-dot or dot only |
| Emitter | Enclosed |
| Illumination | LED red, 16 brightness settings including night-vision levels |
| Adjustments | 0.5 MOA clicks, sub-flush adjusters to prevent accidental changes |
| Battery | One CR2032, no shake-awake; roughly 2.5 years on the dot only but about 75 days if you run the full circle-dot |
| Build | 7075-T6 forged aluminum, hard anodized; waterproof to 100 ft / 30 m |
| Operating range | -60 to 160 F |
| Size | 2.9 in long x 1.7 in wide |
| Weight | 4.6 oz / 130 g (Trijicon spec sheet; the retailer lists none) |
| Footprint | MRO |
| Warranty | Lifetime on the optical system and metal housing to the original owner (non-transferable); electronics 5 years from manufacture |
| Origin | Made in the USA |
On weight: OpticsPlanet's specification table lists no weight for this optic, so we print none rather than repeat a figure from memory. On awards: the MRO HD carries no standalone editorial award, and OpticsPlanet's "Best Rated Product" label is a store rating, not a trophy, so we claim none. Its credential is the owner record, 4.5/5 across 29 reviews, shown attributed rather than folded into a rating of our own.
Should you buy it, and what else to consider
- Buy it if you want the largest, clearest sight picture in this class on a USA-made 7075-T6 housing, you plan to run a magnifier, and the emitter reflection does not bother you when you look through one.
- Want the same money spent on a pistol optic? The Trijicon SRO is the wide-window Trijicon for competition and pistol work.
- Want a sealed emitter for far less? The Holosun AEMS PRO X2 (around $400) gives you an enclosed rifle dot with a big window at value pricing.
- Want the duty-standard alternative? See our Aimpoint Duty RDS review.
- Comparing the field? Start at our best red dot sight and best red dot for an AR-15 guides.
FAQ
What is the difference between the Trijicon MRO and the MRO HD?
The HD is the upgraded sight. It adds a 68 MOA segmented circle around the 2 MOA dot, which you can run as circle-dot or dot only, a re-engineered objective lens, and more brightness settings than the original. The differences owners actually feel are optical: one owner comparing an early MRO directly with the HD reports the HD is essentially parallax free where the original still showed noticeable parallax shift, with a crisper, rounder dot and clearer, less tinted glass. The HD is also the version optimized to run behind a magnifier, which the original was not.
Does OpticsPlanet sell the standard Trijicon MRO?
No. As of July 2026 OpticsPlanet does not carry the standard non-HD MRO sight itself. Its Trijicon MRO product line lists twelve items and all of them are mounts, covers, flip caps and anti-reflection devices, not sights. The MRO optics OpticsPlanet does sell are the MRO HD reviewed here, the MRO HD combo set with a 3x magnifier, the MRO HD Patrol models, and the separate MRO SD line, which starts lower at around $600. That is why this review covers the HD.
What is the MRO HD ghost reticle or circuit board reflection?
It is the most repeated complaint about this sight. Under certain lighting angles, typically with a bright light source coming from roughly the 12 to 2 o clock direction, you can see a reflection of the LED emitter and part of the circuit board inside the optic, and in some units a faint reticle image is visible even when the sight is off. Owner reaction splits: some call it unacceptable at this price and returned units over it, while others acknowledge it, note it has no effect on shooting, and keep the optic. One owner argues it is common to circle-dot sights generally rather than unique to Trijicon. Look through one before you commit if you can.
Is the MRO HD worth it over an Aimpoint or a Holosun?
It is priced with the Aimpoint T-2 class and its case rests on glass and window size: owners repeatedly describe looking through a window rather than down a tube, and rate its clarity against high-end EOTech and Aimpoint sights. The 7075-T6 forged housing is a genuine durability point, since even an Aimpoint T-2 uses 6061 aluminum, and it is made in the USA. Against that, price is the most common criticism after the emitter reflection, and a value enclosed dot like the Holosun AEMS PRO X2 delivers a sealed emitter and a big window for around half the money. Buy the MRO HD for the optics and the build, not because it is the sensible-value choice.
More: best red dot sights · best red dot for an AR-15 · best red dot magnifiers · Trijicon SRO review · best enclosed red dots.