Holosun ARO Red Dot Sight, 2 MOA , Lower 1/3 Co-Witness , FDE

The Holosun ARO-RD2-FDE is a rugged enclosed-emitter red dot optic built for fast target acquisition, dependable durability, and modern rifle applications. Designed specifically for AR-platform rifles, carbines, and PCC setups, the ARO combines Holosun’s advanced optic technologies with a compact, duty-ready design that performs in demanding environments.

Equipped with a crisp 2 MOA Red Dot reticle, the ARO-RD2-FDE delivers fast sight acquisition while maintaining excellent precision for accurate shot placement at both close and intermediate distances. The refined 2 MOA aiming point offers a clean sight picture that minimizes target obstruction while remaining easy to track during rapid shooting scenarios.

The optic mounts directly to standard 1913 Picatinny rails using the included 1.63" Lower 1/3 Co-Witness mount, allowing shooters to maintain compatibility with backup iron sights while achieving a natural and comfortable shooting position. This setup is ideal for defensive carbines, training rifles, and tactical configurations requiring fast transitions and improved situational awareness.

Built for hard use, the ARO features a durable enclosed emitter housing that helps protect the optic from dirt, rain, debris, mud, and environmental exposure that can interfere with open-emitter designs. The rugged aluminum body is finished in Flat Dark Earth (FDE) for enhanced corrosion resistance and a modern tactical appearance.

The ARO-RD2-FDE also incorporates Holosun’s highly regarded Shake Awake Technology, which automatically powers down the optic when motion is not detected and instantly reactivates the reticle the moment movement occurs. This intelligent power management system helps maximize battery efficiency while ensuring the optic is always ready when needed.

For additional reliability, the optic includes Lockout Mode, which prevents accidental brightness or setting changes once configured. This feature is especially useful during transport, duty use, storage, or high-movement shooting scenarios where unintended button presses could alter performance settings.

Designed around simplicity, speed, and reliability, the Holosun ARO-RD2-FDE is an outstanding choice for shooters seeking a durable enclosed-emitter optic for defensive, sporting, tactical, or professional applications.

FEATURES

2 MOA Red Dot reticle

Shake Awake Technology

Lockout Mode prevents accidental setting changes

Lower 1/3 Co-Witness mount included

Fits standard 1913 Picatinny rails

Enclosed emitter optic design

Flat Dark Earth (FDE) finish

Fast target acquisition

Compact and lightweight construction

Optimized for AR-platform rifles and PCCs

Durable aluminum housing

Ideal for defensive, tactical, and sporting applications

IMPORTANT SPECS

Manufacturer: Holosun Technologies

Model: ARO

Manufacturer Part #: ARO-RD2-FDE

UPC: 810047074311

Type: Red Dot Sight

Reticle: Red Dot

Dot Size: 2 MOA

Magnification: 1X

Objective Lens: 22mm

Mount Type: 1.63" Lower 1/3 Co-Witness

Rail Compatibility: 1913 Picatinny Rail

Color: Flat Dark Earth (FDE)

Construction: Aluminum Housing

Emitter Type: Enclosed Emitter

Shake Awake Technology: Yes

Lockout Mode: Yes

Factory Configuration Includes:

Holosun ARO-RD2-FDE Optic

Lower 1/3 Co-Witness Mount

Mounting Hardware

Owner’s Manual