OPEN BOX RETURN
Returned items may be scuffed or scratched, packaging may be damaged. Guaranteed fully functional!
The ARO (Adaptable Reflex Optic) Is AT3’s Smallest, Most Adaptable Red Dot Sight
Boasting the largest viewing area of AT3’s Red Dot Sights, the ARO can be used on just about any rifle platform. As a primary or backup optic on your AR, a sleek reflex sight for your hunting rifle or shotgun, or even riding on a pistol slide adapter, the ARO can do it all – at a price that won’t break the bank.
Planning to mount your red dot on a pistol, shotgun, or other firearm? Check out our selection of ARO-compatible mounting solutions here!
A Dot with a View
- This is our smallest red dot sight, with the biggest viewing area – with none of the bulk of a standard tube
- Multi-coated lenses are scratch resistant, and provide excellent image clarity
- Crisp 3 MOA red dot allows for accurate, both-eyes-open shooting on any platform
- Parallax free design: The red dot stays on target, no matter where the shooter’s eye is
- 6 red dot brightness settings provide optimal visibility in any lighting conditions
Truly Adaptable
- The ARO uses a Fastfire/Venom Style Mounting Footprint, and includes a removable Low Mount for Picatinny Rails
- Mount it on your rifle, shotgun, or pistol – the ARO is built to take on just about everything!
- Waterproof circuitry ensures you’ll stay on target even in adverse conditions
- Shockproof circuitry resists damage, even when the dot takes a beating – from impact or recoil
High Value, Light Cost
- No other Micro Red Dot has an AR-ready riser mount at this price.
- The ARO is factory direct – no markup from distributors.
- Up to 5,000 Hours of Battery Life at Medium Brightness
- CR1632 Lithium battery included.
- Backed by the Lifetime AT3 Warranty. We stand behind our products!
About Riser Mounts
- Low Mount – For Direct Mounting to Picatinny Rails
- Med Profile .83” Riser Mount – for “absolute” cowitness with AR iron sights – Sold separately
Not sure what that all means? Check our FAQ below!
Inside of the box:
- ARO Red Dot Sight
- CR1632 Battery
- Low Picatinny Mount
- Instruction sheet
- Lens cloth
- Allen wrench for Windage Adjustment
- Torx Wrench for Mounting Screws
- Flathead Screwdriver for Battery Cap
Red Dot Sight Technical Specs
- Power / Obj. Lens: 1x23mm
- Reticle: 3 MOA Red Dot
- Lens Coating: Multi-coated
- Weight: 1.8 oz
- Mounting Length: 1.9 inch / 48 mm
- Mounting Width: 1.1 inch / 28 mm
- Height: 1.2 inch / 30 mm
- Objective Lens Area: 23mm x 21 mm
- Battery Type: CR1632 (Battery Included)
- Battery life: Approximately 5,000 Hours on Medium Setting
- Auto Shut-off: 6 Hours
- Windage/Elevation Click Value: 1 MOA per click
- Adj Range: +/- 50 MOA (total adjustment range 100 MOA)
- Eye Relief: Unlimited
- Parallax Adjustment: Fixed
- Field of View: Unlimited
- Night Vision Compatible: No
- Nitrogen filled: Yes
- Waterproof/Fogproof: Yes
- Recoil resistance – Certified up to 500g’s. Certified for use with large-caliber rifles and shotguns, as well as “springer” airguns with 2-way recoil
- Body material: 6061 Aluminum
- Finish: Matte black anodized
Frequently Asked Questions
Q: How do I mount the ARO to my pistol?
A: The easiest way to mount the ARO to a pistol slide is by using an adapter plate in the Fastfire Pattern. AT3 carries adapter plates that can be used simply by drifting out the rear sight of many popular pistols on the market. The ARO may not fit in pistol slides cut specifically for Fastfire red dot sights.
Q: Do I need to use iron sights along with with the ARO Red Dot Sight?
A: NO – Iron sights are not required to use this red dot sight! The red dot sight can be used on its own. Many people choose to use iron sights as a backup, but they are optional. This red dot sight will work great on “optics ready” rifles that don’t have any iron sights.
Have Questions About this Product?
Customer Reviews
I just got AT3 mini red dot for my pistol and it shipped fast and was exactly what was advertised
Thanks for taking the time to share your feedback. We're glad we are satisfied with your purchase!
I now have three of these. I own 4 Trijicon RMR's and I love them but for $100 vs $500 the AT3 AR0 is impossible to beat. They're reliable, I've never had one fail to turn on, and the different brightness settings allow you to see the dot in sunny or low light conditions. It's also just a really good looking optic!
Thanks for sharing your feedback! We're glad you're satisfied with your purchase. Cheers!
Looks great on my gun. I am still getting it lined out. I am impressed with the quality of the red dot. I bought this one for my G2C 9mm and once I know how to use it I plan on buying one for my 40 caliber G2C.
Thank you for your review! We're glad to hear that you're enjoying your Open Box Return - Low Mount - AT3 ARO™ Micro Red Dot Reflex Sight. We'd recommend that you consult the owner's manual for proper installation instructions. Thank you for choosing Open Box!
This is a pretty nice inexpensive red dot. The glass is crystal clear, and it seems like it will be quite durable. The dot is sharp and the brightness adjustment is good and intuitive.
The only reason I give it 4 stars is because I wish it had a shake awake option. I probably shouldn’t take that away from the product because I was aware of that before I bought it, but I find myself fumbling to find the power button, so 4.5 stars.
I like the performance and quality of this red dot. I usually stay away from "open box" deals but tried this one. It was very frustrating!!! It took 3 shipments to get a "complete" product and a couple weeks after initially receiving ONLY the red dot itself. Missing along the way was: battery and tools. Finally received everything and it works just fine.