Davidson Defense Mutton Chops 10.5-inch 1:10 9MM AR-9 Freefloat Keymod Handguard Pistol Complete Upper Build

Davidson Defense Mutton Chops 10.5-inch 9mm AR-9 Freefloat Keymod Complete Upper

The Davidson Defense Mutton Chops is a 9mm AR-9 Complete Upper built around a compact 10.5-inch platform. The kit centers on a Bear Creek 10.5-inch 9mm barrel with a black nitride finish, 1:10 twist rate, and 1/2x36 thread pitch, paired with a 9mm A2 birdcage flash hider and a crush washer. The upper receiver is 7075-T6 aluminum with an anodized finish, M4 feed ramps, an ejection port door assembly, and a forward assist assembly, paired with a 10-inch ultra-slim freefloat Keymod rail handguard. A 9mm nitride bolt carrier group in 8620 alloy steel with an external extractor, compatible with Glock and Colt pattern magazines, and a Mil-Spec AR-15 M4 charging handle complete the upper component set.

Key Features

• Bear Creek 10.5-inch 9mm barrel, black nitride finish, 1:10 twist, 1/2x36 thread pitch
• 9mm A2 birdcage flash hider, 1/2x36, crush washer included
• 7075-T6 aluminum upper receiver, anodized, M4 feed ramps, ejection port door assembly, forward assist assembly
• 10-inch ultra-slim freefloat Keymod handguard, slim profile, Keymod accessory mounting
• 9mm nitride bolt carrier group, 8620 alloy steel, external extractor, Glock and Colt pattern magazine compatible
• Mil-Spec AR-15 M4 charging handle

Perfect For

• Builders sourcing a complete 9mm AR-9 upper ready to pair with their own lower receiver
• Shooters building a compact 10.5-inch 9mm platform who want the BCG and charging handle already included
• AR-9 builders who want a Bear Creek barrel, freefloat Keymod handguard, and 9mm nitride BCG covered in one complete upper

Bear Creek Barrel and Muzzle Device

The Bear Creek barrel is 10.5 inches, chambered in 9mm, and carries a black nitride finish with a 1:10 twist rate. The thread pitch is 1/2x36, which matches the included 9mm A2 birdcage flash hider. A crush washer is included with the muzzle device. At 10.5 inches this barrel keeps the overall upper compact while covering the front end from muzzle device to upper receiver.

Upper Receiver and Handguard

The upper receiver is 7075-T6 aluminum with an anodized finish, M4 feed ramps, an ejection port door assembly, and a forward assist assembly. The 10-inch ultra-slim freefloat Keymod handguard features Keymod accessory mounting slots along the body for accessory attachment in a slim profile design. These two components define the exterior structure of the upper assembly on this AR-9 platform.

9mm Bolt Carrier Group and Charging Handle

The 9mm nitride bolt carrier group is 8620 alloy steel with an external extractor, compatible with both Glock and Colt pattern magazines. A Mil-Spec AR-15 M4 charging handle is included to complete the upper component set.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws.