Forward Controls Design Ar-15 6315 Flash Hider For Keymo Mount 1/2-28

The Forward Controls Design AR-15 6315 Flash Hider for Keymo Mount is a compact, purpose-built muzzle device engineered for shooters who need flash suppression without sacrificing recoil control. Built from solid 4140 bar stock and finished with black nitride, this 1/2-28 threaded device combines the flash-suppression capability of a classic A2 flash hider with modern compensator technology—and it plays nicely with Dead Air 223 sound suppressors via the Keymo interface, making it an excellent choice for suppressed rifle builds.

The 6315's design philosophy is rooted in the Stoner 63 light machine gun, and you'll see it in the port geometry. The three upward-facing ports work harder than the smaller 3 and 9 o'clock ports, directing more gas upward to reduce muzzle rise by 15 to 20 percent compared to an A2. That's real-world compensation without the penalty: you get better handling in rapid fire, comparable flash suppression to the A2, and no increase in noise or concussion signature. It's compact, it's lightweight, and it's a blended performer—the kind of muzzle device that handles hunting, tactical work, and the range equally well.

Because the 6315 delivers A2-level flash suppression, it's regulated as a flash hider in states with flash-hider restrictions (CA, MA, NY). A crush washer is included. Made in the USA.

Key Features

• Precision-machined from solid 4140 bar stock, black nitrided for durability
• Dead Air Keymo 223 sound suppressor mount interface for quick-attach suppressed setups
• 15–20% better muzzle rise compensation versus A2, with equal flash suppression
• Asymmetric port design (smaller 3 and 9 o'clock ports, larger upward-facing ports) optimizes gas direction
• Compact, lightweight blended muzzle device—no increase in noise or concussion
• Crush washer included
• Made in the USA

Specifications

Frequently Asked Questions

Is this flash hider compatible with Dead Air suppressors?

Yes. The 6315KM is designed for Dead Air 223 sound suppressors using the Keymo quick-attach interface. If you run a Dead Air suppressor on a 1/2×28 threaded barrel, this is a matched setup.

Will this work as a standalone muzzle device, or do I need a suppressor?

It functions as a complete muzzle device on its own. It's a flash hider with compensator features, so you get flash suppression and recoil reduction whether or not you mount a suppressor. The Keymo interface is there if you want to add one later.

What thread pitch does the 6315 use?

The 6315KM is threaded 1/2×28, the standard pitch for 5.56/.223 Remington AR-15s. A crush washer is included in the package.

Is the 6315KM legal in restrictive states like California or Massachusetts?

Because this device delivers A2-level flash suppression, it meets the functional definition of a flash hider in states with flash-hider regulations (CA, MA, NY). Verify your local laws before purchase.