Holosun ARO-GR2 Green Dot Sight – 2 MOA Reticle, Compact Reflex Optic

Lock in, saddle up, and send it straight with the Holosun ARO-GR2 — a no-nonsense, green-dot workhorse built for shooters who don’t mess around. This Advanced Rifle Optic (ARO) builds on the proven 403 and 503 series, now with a bigger, badder 22mm housing and a 1.63″ lower 1/3 co-witness mount that plays perfect with Holosun magnifiers.

At the heart of this optic is a crisp 2 MOA green dot, daylight-bright and razor sharp, giving you lightning-fast target acquisition without the fuss of multiple reticle options. Whether you’re stacking tight groups or running dynamic drills, this clean, focused setup delivers precision with zero distractions.

Equipped with Shake Awake™, the ARO-GR2 powers down when the rifle’s still and springs back to life with the slightest motion — ready when you are, saving juice when you’re not. Speaking of juice, this optic runs up to 50,000 hours on a single CR2032 battery. That’s years of uptime without worry.

Wrapped in MAO-finished aluminum, IP67 waterproof, and recoil-rated to 1000G, this optic doesn’t just talk tough — it walks the walk, ride after ride.

What’s in the Box:

• ARO-GR2 Green Dot Optic (2 MOA)

• 1.63″ Lower 1/3 Co-Witness Mount

• 1.05″ Low Mount

• Multi-tool, Wrench & Cleaning Cloth

Highlights from the Trail:

• 2 MOA Green Dot — crisp, clean, and made for accuracy

• Shake Awake™ — powers down when idle, wakes up on movement

• Super LED — daylight visible with 10 DL & 2 NV settings

• 50,000-Hour Battery Life — built to last through every season

• Rugged Aluminum Housing — waterproof, shockproof, cowboy-proof

• Mount It Your Way — includes high and low mounts for versatility

Specs That Matter:

• Window Size: 0.86”

• Dimensions: 2.48″ x 1.54″ x 2.63″

• Weight: 3.38 oz

• Adjustment Clicks: 0.5 MOA

• W&E Range: ±50 MOA

• Temp Range: -22°F to 140°F

• Waterproof Rating: IP67

• Shock Rating: 1000G

If you want a clean, simple optic that’s fast, tough, and flat-out reliable, the Holosun ARO-GR2 is your huckleberry. Built for ranchers, range rats, and red-dot wranglers alike — just point, click, and ride.