Troy Industries Detachable Fixed Rear Battle Sight for AR-15 Flat-Top - Aluminum Construction

A Troy Industries detachable fixed rear battle sight for AR-15 flat-top receivers gives you a backup iron sight or primary optic-free setup you can count on. Unlike carry-handle sights or removable options, this fixed rear sight bolts to your receiver-height Picatinny rail and stays put, holding zero through hard use. It's built for shooters who want fast target acquisition without electronics, whether you're running a patrol rifle, match gun, or dedicated backup system alongside your primary optic.

The sight mounts directly to flat-top AR variants—M4, M16, AR-15, AR-10, and similar platforms—using a standard rail interface. Because it sits on the same plane as your receiver, alignment is straightforward, and the serrated ramp helps cut down glare for cleaner sight picture. Troy machine this one from hardened aircraft aluminum and finish it in MIL-SPEC hardcoat anodize, with stainless steel detents and springs handling the wear. The result is a compact, lightweight rear sight that doesn't flex or shift after you dial it in.

The detachable design means you can remove it if you're mounting a scope or red dot, then remount it later without losing your zero—a practical detail if you're testing different optic setups or keeping a dedicated backup. Install it properly on a receiver-height rail, match your front sight to the same height plane, and you've got a reliable aiming system that works whether your gun is naked or fully kitted.

Key Features

• Fixed rail-mounted rear sight for AR-15 and AR-10 flat-top receivers
• Detachable design—remove without losing zero
• Hardened aircraft aluminum body with MIL-SPEC hardcoat anodize finish
• Stainless steel components for corrosion resistance
• Serrated ramp to minimize glare and improve sight picture
• Works with all same-plane receiver-height rail systems
• Compact, lightweight alternative to carry-handle or A2 sights

Specifications

Frequently Asked Questions

Will this Troy rear sight work with my AR-15 and other rifles?

Yes, it fits any AR-15, AR-10, M4, M16, or similar platform with a flat-top receiver and Picatinny rail. It is designed for same-plane rail systems only—the front sight and rear sight must be mounted at the same receiver height. It will not work properly with railed gas blocks that sit higher or lower than the receiver.

Can I remove the sight and remount it without losing zero?

Yes, the detachable design allows you to remove and reattach it while maintaining zero, making it ideal if you're swapping between optics or keeping a backup sight system.

Is this sight durable enough for serious use?

Troy builds this sight from hardened aircraft aluminum with stainless steel components and finishes it in MIL-SPEC hardcoat anodize, making it rugged and corrosion-resistant for field and range work.

What does the serrated ramp do?

The serrated ramp is designed to reduce glare and reflections off the sight surface, helping you achieve a cleaner sight picture when aiming.