Holosun ARO MRS

• Multi-Reticle System: The selectable 2 MOA dot and 65 MOA ring let the sight adapt to different shooting speeds, giving a fine aiming point for precise shots and a larger reference for faster target pickup at close range.
• Compact enclosed tube design: The full-tube housing protects the emitter from rain, dust, and impact better than an open reflex layout, which helps maintain a clear aiming point in hard field or range use.
• 50,000-hour battery life: Long runtime from a CR2032 battery reduces maintenance and makes the sight practical for rifles or carbines that stay ready for extended periods.
• Manual brightness with night-vision settings: Adjustable intensity with 10 daylight and 2 night-vision compatible levels helps keep the reticle visible without excessive bloom in changing light.
• Lightweight aluminum construction: At 144 g, the ARO MRS keeps handling quick and balanced while the aluminum body, nitrogen filling, and shockproof, waterproof, fogproof build support dependable use in changing conditions.

About the Holosun ARO Series

The Holosun ARO series builds on the company’s earlier 20 mm 403 and 503 pattern optics and moves the concept toward a more modern enclosed rifle sight format. In Holosun’s lineup, ARO models sit as compact red dot sights for rifles and carbines that need the speed of a 1x optic with the added protection of a tube-style housing. The series is aimed at practical rifle use, from training and range work to hunting optics and defensive or duty-oriented carbine setups.

ARO optics use a 22 mm housing designed to pair well with Holosun magnifiers, which makes the series especially relevant for shooters who want a compact sight that can still support a magnified setup later. Depending on the model, the range is offered with either a 2 MOA dot-only configuration or Multi-Reticle System variants, with red, green, or gold illumination options across the family. Shared design themes include an aluminum housing, motion-activated Shake Awake illumination management, and a 1.63-inch lower-third co-witness mount concept that suits modern AR-pattern rifles and similar carbines.

About the Holosun ARO MRS

The Holosun ARO MRS is a 1x enclosed red dot sight built for fast rifle handling while retaining the protected layout many shooters prefer on carbines and hard-use range guns. Its defining feature is the Multi-Reticle System, which combines a 2 MOA dot with a 65 MOA ring. In practice, that gives the sight two distinct strengths: the central dot remains fine enough for more deliberate aiming, while the larger ring helps the eye center the reticle quickly during close, reactive shooting. Because the sight is parallax-free and offers unlimited eye relief, it remains easy to use from improvised positions and during rapid transitions.

The compact tube body keeps the optic streamlined, but the enclosed construction also shields the emitter area better than an open reflex design when weather, dust, or debris are part of the environment. Manual brightness control with 10 daylight and 2 night-vision compatible settings gives the user direct control over reticle intensity, which is useful when moving between bright outdoor light, shaded woodland, and low-light work with night-vision equipment. The CR2032 power system supports up to 50,000 hours of battery life, reducing the need for frequent battery changes.

The aluminum housing, nitrogen-filled construction, and waterproof, fogproof, shockproof build make the ARO MRS suitable for field use where temperature changes and rough handling are realistic concerns. At 144 g and only 63.00 mm long, it keeps bulk low, which helps preserve the quick balance expected from a compact carbine sight.

About Holosun

Holosun is a California-headquartered optics company focused on sights, lasers, and illumination systems for shooting, hunting, law enforcement, and military use. The company says it has worked on optics and laser and infrared technologies since 2013, and its product history traces the 403 Series in 2015 as its starting product line. Holosun expanded quickly through products such as the 510C in 2016 and the 507C and 508T series in 2017, building a strong presence in both rifle and pistol optics.

Holosun is particularly known for practical electronic sight features such as Shake Awake, Solar Failsafe, and its Multi-Reticle System. Its product range covers compact reflex sights, enclosed red dots, magnifier-compatible rifle optics, and laser aiming devices, with a global manufacturing network supporting that breadth. In the red dot category, Holosun has built its reputation around durable housings, long battery life, and reticle systems that give shooters more than one aiming format in a single optic.

Main Features

• Product type: Full tube red dot sight
• Magnification: 1x
• Reticle: 2 MOA Dot, 65 MOA Ring
• Reticle position: 1. focal plane - FFP
• Illumination: Yes
• Brightness adjustment: Adjustable intensity with intensity switch
• Parallax setting: Parallax-free
• Adjustment per click: 14mm/100m - 1/2MOA
• Windage adjustment range: 14.45 mrad / 50.00 MOA
• Battery: CR2032
• Battery life: 50000.00 h
• Length: 63.00 mm
• Width: 39.00 mm
• Height: 66.00 mm
• Weight: 144.00 g
• Housing material: Aluminium
• Lens coating: Multicoated
• Window size: 21.84
• Nitrogen filled: Yes
• Waterproof: Yes
• Fogproof: Yes
• Shockproof: Yes
• Operating temperature: -30°C to +60°C
• Color: Black
• Made in: China

Warranty

Holosun states a 10-year warranty for the illumination system (LED) from the manufacture date under normal, personal use.

In the Box

• Holosun ARO MRS sight
• CR2032 battery
• 1.63" mount
• 1.05" mount
• Lens cloth
• Multi-tool
• Wrench
• Manual
• Warranty card