Holosun ARO Enclosed Red 2 MOA 22mm Rifle Sight

Holosun ARO Enclosed Red 2 MOA Rifle Sight is a compact, enclosed 1x red-dot optic designed to provide a clean and precise 2 MOA aiming point for rifle platforms. Produced by Holosun, it delivers a straightforward point-of-aim reticle for fast target acquisition and consistent alignment at typical non-magnified rifle distances.

The ARO is intended to serve as a primary or co-witness optic on rifles equipped with Picatinny-style mounting systems. Its enclosed 22mm aluminum housing protects the emitter and electronics from debris and environmental exposure, while remaining compact enough to integrate with magnifiers and backup iron sights. Designed for range, training, and general-purpose rifle use, the ARO emphasizes durability, simplicity, and long battery life.

Key Features

• Enclosed rifle reflex sight with 2 MOA red-dot reticle

• 1x magnification with unlimited eye relief for rapid sight acquisition

• 22mm aluminum enclosed housing for durability and protection

• Lower 1/3 co-witness pedestal mount for consistent sight height and iron sight alignment

• Powered by a single CR2032 battery

• Shake Awake technology to conserve battery during inactivity

• Manufacturer-stated runtime up to 50,000 hours (brightness dependent)

• 12 brightness settings: 10 daylight and 2 night-vision-compatible modes

• Compact form factor suitable for pairing with magnifiers

Specifications & Construction

The ARO features an enclosed 22mm aluminum housing finished in black matte. It operates at 1x magnification with a fixed 2 MOA red dot reticle and unlimited eye relief. Listed weight is approximately 5.56 oz. Power is supplied by a single CR2032 battery. Available dimensional data lists a height of 2.70 inches and width of 3.60 inches; overall length is not specified in the provided source data. The enclosed design supports consistent performance by shielding the emitter from external contaminants.

Compatibility & Intended Use

This optic mounts to standard 1913 Picatinny rails and is compatible with Picatinny/Weaver mounting systems. It is designed for rifle setups that use a primary non-magnified optic, magnifier-and-dot combinations, or lower 1/3 co-witness configurations with iron sights. Typical applications include general-purpose rifles, range and training carbines, and platforms requiring a compact enclosed red dot solution.

What’s Included

• Holosun ARO Enclosed Red 2 MOA Rifle Sight

• Lower 1/3 co-witness pedestal mount

• CR2032 battery

• Mounting hardware

• Adjustment tool

• Manufacturer documentation