Collimator AT3 Tactical ARO 3 MOA Mount .83"

AT3 Tactical ARO reflex sight blends compact dimensions with durability, making it an excellent MRDS choice for pistols. This miniature reflex sight delivers the expected features: extremely low weight, smooth both‑eyes‑open aiming, and high shock/recoil resistance. It uses the popular Docter footprint for easy mounting directly to a pistol slide. A .83 mount version is available to achieve absolute co‑witness with A2 sights.

AT3 Tactical ARO — what it offers

• Versatile design — suitable for pistols, carbines and shotguns.
• Ultralight, compact form factor — negligible weight added to the firearm.
• Fast, precise both‑eyes‑open aiming.
• Precise 3 MOA dot with adjustable brightness to match conditions.
• Advanced lens coatings reduce glare and improve contrast.
• Top‑loading battery compartment — change the cell without removing the sight.
• Docter‑standard footprint — easy integration with pistol plates and adapters.
• Included Picatinny mount sized for A2 height.

Practical use

The combination of a narrow hood, a 3 MOA dot and a wide lens enables lightning‑fast target acquisition at close and mid ranges. As an MRDS, the AT3 Tactical ARO is well‑suited as a primary optic on long guns, an offset to a magnified scope, or mounted directly on a pistol slide. Parallax‑free performance and unlimited eye relief ensure accuracy regardless of shooter position. Six brightness modes let you tune the dot intensity for any lighting.

Compact MRDS with Docter footprint

The Docter footprint supports a wide range of adapters — from pistol mounting plates to offset mounts and universal optic interface plates. The anodized aluminum body balances low mass with high durability. A top‑loading battery tray enables quick battery swaps without removing the sight from the firearm.