Holosun ARO Enclosed Green 2 MOA Sight

Holosun ARO Enclosed Green 2 MOA Rifle Sight is a compact, enclosed, non-magnified rifle optic designed to deliver a precise 2 MOA green dot for fast aiming and target alignment. Built by Holosun, this 1x reflex sight provides a clear, unobstructed sight picture for close- to mid-range rifle applications while maintaining a low-profile form factor.

The ARO is intended to meet the need for a durable primary rifle optic that integrates easily with magnifiers and standard iron sights. Its enclosed 22mm aluminum housing protects the emitter from debris and environmental exposure, supporting consistent performance in training, range, and general-purpose rifle setups. The included pedestal mount positions the optic at a lower 1/3 co-witness height, allowing compatibility with many backup iron sight configurations.

Key Features

• Enclosed rifle reflex sight with 2 MOA green dot reticle

• 22mm aluminum housing designed for durability and magnifier compatibility

• Lower 1/3 co-witness pedestal mount (1.63″) for iron sight alignment

• CR2032 battery power with reported runtime up to 50,000 hours (setting dependent)

• Shake Awake technology to conserve battery life and reactivate with motion

• 12 brightness settings (10 daylight, 2 night-vision compatible)

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

• Parallax-free design for practical rifle accuracy

Specifications & Construction

The ARO features an enclosed aluminum housing with a black matte finish and a 22mm objective lens. It operates at 1x magnification and uses a single CR2032 battery. Listed weight is approximately 5.56 oz. Overall dimensions are reported as roughly 2.65″ (H) × 3.65″ (W) × 4.75″ (L). Brightness is electronically controlled with multiple daylight and night-vision compatible settings.

Compatibility & Intended Use

This optic mounts to standard 1913 Picatinny rails and is compatible with Picatinny/Weaver interfaces. It is designed for rifle platforms as a primary non-magnified optic and can be paired with compatible magnifiers for extended reach. Typical applications include patrol or duty rifles, range and training carbines, and general-purpose rifle builds where lower 1/3 co-witnessing with iron sights is desired.

What’s Included

• Holosun ARO Enclosed Green 2 MOA Rifle Sight

• Lower 1/3 co-witness pedestal mount (1.63″)

• CR2032 battery

• Mounting hardware

• Adjustment tool

• Manufacturer documentation