Troy Industries Rear Folding BattleSight Round - Flat Dark Earth for AR-15

The Troy Industries Rear Folding BattleSight Round in Flat Dark Earth is a backup iron sight designed for AR-15 rifles that gives you a reliable aiming option when your primary optic or red dot fails. Unlike permanent fixed sights, this flip-up design stays out of the way until you need it—a critical advantage for shooters who rely on electronics. When deployed, it locks rigidly in place, held secure by spring pressure and two detent balls that won't rattle loose or accidentally collapse mid-string.

The open round aperture design positions your aiming reference at the same height as standard factory iron sights, which means less holdover confusion if you're switching between optics and irons on the same rifle. Installation is straightforward: the base clamps to any Picatinny rail (military or commercial spec) with a standard flathead screwdriver—no levers or knobs to snag on gear, brush, or tactical kit. Stowing height is minimal at only 0.460" when folded, so it won't interfere with your scope mount or optic footprint.

Durability and real-world usability are baked in. Protective "ears" shield the post and aperture from damage if you take a bump or fall. Windage adjustments happen in 0.5 MOA increments via a detent-locking wheel, giving you fine control over your point of impact without losing zero between shots. Retraction requires deliberate action—you press a spring-loaded button on the left side of the base to fold it down, so accidental deployment isn't a concern in the field.

Key Features

• Flip-up design deploys quickly when primary optic fails
• Locks securely with spring pressure and dual detent balls—no rattle or drift
• Open round aperture matched to factory sight height
• Clamps to Picatinny rail with standard screwdriver; no tools or levers
• Only 0.460" when folded—minimal height for scope or red dot mounting
• Protective ears guard post and aperture from impact
• Windage adjustment in 0.5 MOA increments
• Flat Dark Earth finish resists glint and blends with modern tactical platforms

Specifications

Frequently Asked Questions

Will this rear sight work with my AR-15 optic or red dot?

Yes. The sight is designed as a backup for when your primary optic or red dot fails. It folds flat and low (0.460" when stowed) so it won't block your primary sight picture, and you can deploy it quickly if needed. Because the aperture sits at factory sight height, you won't need to relearn your hold if you switch between optics and irons.

What kind of rail does this mount to?

The rear sight base clamps to any military or commercial spec Picatinny rail on your AR-15's receiver. Installation requires only a standard flathead screwdriver—no special tools or quick-detach levers.

How do I adjust windage?

Windage is adjusted using a detent-locking adjustment wheel on the sight. Adjustments are made in 0.5 MOA increments for precise aiming correction.

Is the aperture protected from damage?

Yes. Protective "ears" shield both the post and aperture from impact when the sight is deployed, helping preserve zero and sight integrity through hard use.