HOLOSUN ARO-RD2

Overview

ARO (Advanced Rifle Optic) is an advancement on our popular 20mm 403 and 503 series optics. ARO features an all-new 22mm housing design that mates perfectly with our magnifier series and an all-new 1.63” lower 1/3 co-witness pedestal mount. ARO is available as a 2MOA dot only or with our Multi-Reticle System (MRS) in Red, Green, or Gold.

Key Features

2 MOA dot — Offers a precise yet quick acquisition reticle in red (also available in green or gold/MRS versions).

Shake Awake™ — Motion-activated LED that conserves battery, automatically reactivating with slight movement. Configurable shut-off timer from 10 min to 12 hr.

Up to 50 000 hrs runtime — Utilizing efficient LED tech with manual brightness control (10 daytime/2 night settings) on a single CR2032 battery.

Durable build — Hard anodized aluminum housing rated IP67 for shock, dust, and water resistance.

Multi‑layer coating — Enhanced glass clarity and glare reduction for crisp sight picture.

Compact & lightweight — Measures ~2.5″ long, weighs just 3.4 oz, and offers unlimited eye relief with parallax-free performance.

Side-load battery tray — Quick CR2032 swaps without removing from the rail, preserving zero alignment.

Precision adjustments — ½ MOA click turret adjustments with ~±50 MOA total windage/elevation travel.

In the Box

ARO‑RD2 optic with 2 MOA red dot

Low 1.05″ and high 1.63″ picatinny mounts

CR2032 battery installed

Multi-tool & hex wrench

Cleaning cloth

Lens covers

User manual & warranty information