AT3 ARO + DELTA Combo Delivers Fast Red Dot with Flip-To-Side Magnification
Features
- Complete red dot and magnifier solution with 10% savings
- ARO red dot for fast target acquisition
- DELTA 3x magnifier with flip-to-side QD mount
- 3″ eye relief works with backup iron sights
- Quick detach mounting for easy rifle swapping
- Absolute and lower 1/3 cowitness compatibility
- 38 ft field of view at 100 yards
- Lifetime warranty on both components
This combination addresses the range limitation of red dot sights by adding variable magnification that can be quickly deployed or stowed. The flip-to-side mount allows instant transitions between unmagnified close-range shooting and magnified precision work. The 3″ eye relief on the DELTA ensures clear sight picture even with backup iron sights installed, while the QD mount enables easy transfer between multiple rifles.
ARO Red Dot Specifications
- Magnification: 1x23mm
- Reticle: 3 MOA Red Dot
- Length: 1.9″
- Width: 1.1″
- Height: 1.2″
- Weight: 1.8 oz
- Battery: CR1632 (included)
- Battery Life: 5,000 hours at medium setting
- Brightness Settings: 6
- Adjustment Range: +/- 50 MOA
- Mounting Pattern: Doctor/Fastfire/Venom
- Body Material: 6061 Aluminum
- Waterproof/Shockproof: Yes
DELTA Magnifier Specifications
- Magnification: 3x
- Objective Lens: 20mm
- Length: 3.98″
- Weight: 12 oz with mount
- Eye Relief: 3.07″
- Field of View: 38.3 ft @ 100 yards
- Exit Pupil: 6.7mm
- Height: 1.43″ (absolute cowitness)
- Height with Spacer: 1.57″ (lower 1/3 cowitness)
- Lens Coating: Fully multi-coated
- Housing Material: 6061-T6 Aluminum
- Waterproof Rating: IPX7
- Mount: Quick detach flip-to-side
What’s Included?
- 1x ARO Red Dot Sight
- 1x DELTA 3x Magnifier with QD Mount
- 1x Rubber Lens Cover (ARO)
- 1x Low Picatinny Mount (ARO)
- 1x Cowitness Spacer (DELTA)
- 1x CR1632 Battery (ARO)
- 2x Lens Cloths
- 1x Allen Wrench for Windage Adjustment
- 1x Torx Wrench for Mounting Screws
- 1x Flathead Screwdriver for Battery Cap
- 1x 3mm Allen Wrench
- 1x Longer Screws for Spacer
- 2x Instruction Sheets
ARO Instruction ManualFrequently 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: How do I know which riser mount to get?
A: For AR’s and other modern rifle platforms, we recommend the .83″ Mount if you are running without iron sights since it puts the red dot at the standard height of mil-spec iron sights. If you’re running a shotgun, pistol, or any firearm with a “drop comb” where the cheek rest is lower than the top of the receiver, the Low Mount will serve you just fine.
If you go with the .83″ Mount, you’ll also get the Low Mount – if you plan to move the optic around multiple platforms, go with that option!
Q: Do I need to use iron sights along 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.
Q: What is the recommended torque for the top screws that thread into the mount? Do I need Loctite/threadlocker?
A: We recommend no more than 12 inch-lbs for torque on the two top screws, no matter what you’re mounting the ARO to. You do not necessarily need threadlocker, but it is highly recommended, especially on handguns. A small drop of Blue Loctite or equivalent medium threadlocker on each screw will suffice.
