Trijicon MRO 2-MOA Mini Rifle Optic

$420.00 - $460.00
(34 reviews)
Current Stock:
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The Trijicon Miniature Rifle Optic (MRO™) is a reflex-style, sealed sight intended for use on rifles, carbines, and shotguns to provide fast target acquisition. It is designed to be used with both eyes open, providing the operator with maximum situational awareness.

The large aperture and tapered light path maximizes the viewing area in such a small optic, allowing for fast target engagement – especially from non-standard shooting positions. Advanced lens coatings and electronics produce a crisp red dot.

The brightness control dial on the MRO is specifically designed for ambidextrous usage. With a mid-adjustment “off” position and eight discernible brightness settings, this brightness dial allows for quick and ergonomic adjustments.

The MRO features fully protected adjusters that maintain zero even during rough handling, and can be adjusted without the need for special tools.

Hard-anodized, forged 7075-T6 housing is fully sealed and waterproof, providing durability in demanding conditions.

Package Includes:

  • 1 Trijicon Logo Sticker (PR15)
  • 1 Lens Cloth
  • 1 MRO Manual
  • 1 Warranty Card
  • 1 MRO Mount Guide

Key Features:

  • Largest Field of View of ANY Mini Red Dot, 44% bigger field of view than H1 / T1 / T2
  • Reduced Tube Effect
  • Parallax-Free
  • True Zero Magnification Optic
  • Ambidextrous Brightness Control, adjustment dial is equally usable by left or right handed operators
  • Aircraft Grade Aluminum Housing, the MRO is the ONLY red dot made of Forged 7075, the same material used to manufacture the battle proven ACOG, 80% stronger than extruded 6061
  • Turn it on for up to 5-years using one single battery


  • Magnification: 1x
  • Objective Size (mm): 25mm
  • Length (in): 2.6 in.
  • Weight (oz): 4.1 oz. (116g) with battery installed
  • Illumination Source: Battery
  • Reticle Pattern: Dot
  • Day Reticle Color: Red
  • Eye Relief (in): Infinite
  • Adjustment @ 100 yards (clicks/in): 1 click = 1/2 MOA
  • Housing Material: 7075-T6 forged aluminum
  • Batteries: 1x CR2032 Lithium Battery
  • Battery Life: 5 years of continuous use at day setting “3” (setting 5 of 8) at 70°F (21°C)
  • Adjustment Range: 70 MOA Total Travel
  • Illumination Settings: 8
  • Night Vision Compatible: Yes
  • Dimensions (LxWxH): 2.6 in. x 1.7 in. x 2.0 in. (66mm x 43mm x 51mm) without mount
  • Waterproof : 100 ft. (30 m)


  • 5
    Killing it

    Posted by Earl on 1st Oct 2022

    I don’t even look at other sites anymore. If I know I’ve seen it on AUs site before, I go straight here and buy it. Best prices and shipping I’ve found in a long time. The MRO is also a great optic…

  • 5
    Trijicon MRO

    Posted by E.H on 12th Sep 2021

    Trijicon is virtually the only optics company I use on any field, tactical, pistol firearm I own. I purchased two of these to try on my H&K MP5 (not a SP or clone) debating if I really even needed it since I am never really in a real tactical setting where target engagement is needed quickly or accurately since it is on spray mode. I also added one on my newest B&T APC 9 pistol where I did feel it was a bit more important since I would want better accuracy in semi. In both situations I love this optic. Even own trijicon thermal. Regardless you can not go wrong with the MRO unless budget is your number 1 concern. If quality/durability/battery life are the most important then Trijicon it is. An the end all that truly matters is the person behind the weapon and the amount of time spent putting lead down range regardless of optics. Stay safe and God Bless America and our Freedom of the 2nd amendment. God Speed to all those lives lost 20 years ago!!! You will never be forgotten.

  • 5
    Trijicon MRO 2-MOA Mini Rifle Optic

    Posted by 311 on 23rd Dec 2020

    A++ Both Trijicon and ARMS UNLIMITED are the best in the business. Thanks ARMS UNLIMITED.

  • 5
    Awesome optic, awesome company

    Posted by Shelbey K on 31st Aug 2020

    Mro is a “classic” No frills bullet proof get the job done optic. Did a ton of research ended up in this because of battery life and durability. Nearly dead on when sighted in with a adm mount. If your woundering if it’s worth the money, just do it. It is! Coming from a Romeo 5. Super quick shipping and best price I could find around.

  • 5
    Excellent shipping speed

    Posted by Jacob Johnson on 27th Aug 2020

    They shipped my product same day and provide a shipping number. My optic arrived with in the week. Vary happy with this company, will do Business with them again

  • 4
    Excellent sight

    Posted by SJ on 25th Aug 2020

    I have a few MROs and they all are great. I had concerns because of the packing of the sight. The batteries were installed and one of the two I ordered was on. Both worked very well.

  • 5
    Love this product

    Posted by qUAan on 13th Aug 2020

    Great optics will recommend to everyone. Easy to use, very reliable and accurate red dot.

  • 4
    Fast shipping and basic description.

    Posted by Chad Shelton on 26th Dec 2019

    Shipping was extremely fast when I ordered this MRO. When it arrived I was surprised to discover that the MRO was packed in a cardboard box with paper filler inside. It comes with all the paperwork and swag/accessories that you get with every optic but lacks the hard case that would hold the MRO. There was no damage and the optic is clean and clear.

  • 5
    Trijicon MRO as good as it gets

    Posted by Chris Patire on 10th Dec 2019

    I have had an Acog for years and am use to Trijicon’s quality and construction. This is the same heavy duty style optic that I am use to with Trijicon. Great clear glass and brightness settings to accommodate everyones eyes. Nice big plane of view. Slight greenish/blue tint, not a problem just it is there. Excellent red dot for the price. Super fast to ship.