Red dot sights
Holosun ARO-CORE vs Trijicon MRO HD: Which Red Dot Is Worth It?
Quick answer
Buy the Holosun ARO-CORE at under $150 if you want a wide-window red dot with Shake Awake, 12 brightness settings and mounts in the box for far less. Buy the Trijicon MRO HD at under $1,000 if you want the Trijicon name and a 25mm objective in a short body, and accept the premium.
Holosun ARO-CORE Red Dot Sight with Shake Awake, 22mm Window
Under $150A 2 MOA red dot with a 22mm window, Shake Awake and 12 brightness settings.
Best for: fast target acquisition with a wide field of view
Check price on AmazonTrijicon MRO HD 2.0 MOA Red Dot Sight
Under $1,000A 2.0 MOA red dot with a large 25mm objective in a short body.
Best for: a duty grade optic with a wide sight picture
Check price on AmazonThe Trijicon MRO has been a popular large-window red dot for years, and the Holosun ARO-CORE is a much cheaper competitor with a 22mm window. Both are 1x, 2 MOA dots. The Trijicon listing is brief, so the table marks what you should check on the maker page.
For the price gap, see the Holosun against Aimpoint page, and for cheaper options see budget red dot sights.
How do the Holosun ARO-CORE and Trijicon MRO HD compare on specs?
Both are 1x, 2 MOA red dots. The Trijicon has the larger objective and the higher price; the Holosun lists Shake Awake and included mounts.
Sourced figure
| Feature | Holosun ARO-CORE | Trijicon MRO HD |
|---|---|---|
| Magnification and dot | 1x, 2 MOA | 1x, 2.0 MOA |
| Window or objective | 22mm optical window | 25mm objective |
| Brightness settings | 12 settings | See Trijicon specifications |
| Auto features | Shake Awake | See Trijicon specifications |
| Mounts in the box | Co-witness and low mounts | See listing |
| Warranty | See Holosun listing | See Trijicon warranty |
| Budget | under $150 | under $1,000 |
Specifications are from the Amazon listings and maker pages. Confirm current details on the listing before buying.
Which should you choose, the Holosun or the Trijicon?
Choose the Holosun ARO-CORE if:
- You want the lower price and Shake Awake.
- You want co-witness and low mounts included.
- You are building a budget carbine.
Choose the Trijicon MRO HD if:
- You want the larger 25mm objective for a wide field of view.
- You prefer the Trijicon brand and warranty.
- The price gap is acceptable for your build.
Sources
- Holosun and Trijicon published listings and specifications
Frequently asked questions
Is the Trijicon MRO HD better than the Holosun ARO-CORE?
It has a larger objective and the Trijicon name. The Holosun costs far less and lists Shake Awake and 12 brightness settings. Which is better depends on budget.
Are they the same dot size?
Both list a 2 MOA dot at 1x.
Do both come with mounts?
The Holosun listing says co-witness and low mounts are included. Check the Trijicon listing for what is in the box.
Do I need an enclosed or open emitter?
Check each maker page for the housing design, since it affects how debris and weather reach the lens.
Researched, not professional advice. This page is compiled from published manufacturer specifications, published optical and ballistic formulas, and owner-review consensus, not hands-on testing. Figures described as a rule of thumb are shooter convention rather than sourced numbers, and they are labelled that way wherever they appear. Ballistic figures come from a point mass model using the ballistic coefficient the maker publishes, so treat them as a starting point and confirm them on paper at a measured distance. Confirm your firearm is unloaded with the action open before you mount, level, torque or bore sight anything. Verify a zero only on a supervised range or a safe, legal backstop, know what lies beyond your target, and follow the law where you hunt and shoot, including rules on land access and permitted cartridges.
