Davidson Defense Mutton Chops 11.5-inch Carbine-Gas 1:8 .223 Wylde AR-15 Freefloat Keymod Handguard Pistol Upper Build Kit

Davidson Defense Mutton Chops AR-15 Upper Build Kit - 11.5-inch, .223 Wylde, Carbine Gas, Freefloat Keymod Handguard

The Davidson Defense Mutton Chops is a .223 Wylde AR-15 upper build kit built around a 7075-T6 aluminum upper receiver with an anodized finish and M4 feed ramps. The kit includes an 11.5-inch government profile barrel in 4140 chrome moly vanadium steel with a nitride finish, a 1:8 twist rate, and a 1/2x28 thread pitch, a 10-inch Ultra-Slim freefloat Keymod handguard in black 6061-T6 aluminum, a micro low-profile 0.750 carbine gas block, and a GI Birdcage flash hider in manganese phosphate at 1/2x28. BCG and charging handle are not included.

Key Features

• 7075-T6 aluminum upper receiver, anodized finish, M4 feed ramps
• 11.5-inch government profile barrel, 4140 chrome moly vanadium, nitride finish
• .223 Wylde
• 1:8 twist rate
• 1/2x28 thread pitch
• Carbine gas system
• Micro low-profile 0.750 gas block
• 10-inch Ultra-Slim freefloat Keymod handguard, 6061-T6 aluminum, black
• GI Birdcage flash hider, manganese phosphate, 1/2x28
• BCG not included
• Charging handle not included

Perfect For

• AR-15 pistol builders sourcing an 11.5-inch .223 Wylde upper build kit without BCG and charging handle
• Shooters pairing this upper kit with an existing AR-15 lower assembly and their own BCG and charging handle
• Builders looking for a carbine gas freefloat Keymod upper build kit in .223 Wylde

Barrel and Gas System

The barrel is an 11.5-inch government profile unit in 4140 chrome moly vanadium steel with a nitride finish, chambered in .223 Wylde with a 1:8 twist rate and a 1/2x28 thread pitch. The carbine-length gas system pairs with a micro low-profile 0.750 gas block to cover the gas regulation side of the upper. A GI Birdcage flash hider in manganese phosphate at 1/2x28 rounds out the muzzle end.

Upper Receiver and Handguard

The upper receiver is 7075-T6 aluminum with an anodized finish and M4 feed ramps, forming the structural core of the upper assembly. The 10-inch Ultra-Slim freefloat Keymod handguard is 6061-T6 aluminum in black, surrounding the barrel without contact and providing Keymod mounting positions for compatible accessories.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. BCG and charging handle are not included.