Davidson Defense Mutton Chops w/SBA3 Brace 11.5-inch Carbine-Gas 1:8 .223 Wylde AR-15 Freefloat Keymod Handguard Pistol Full Build Kit

Davidson Defense Mutton Chops AR-15 Pistol Full Build Kit - 11.5-inch, .223 Wylde, Carbine Gas, Freefloat Keymod Handguard, SB Tactical SBA3 Brace

The Davidson Defense Mutton Chops is a .223 Wylde AR-15 pistol full 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 freefloat Keymod handguard in black 6061-T6 aluminum, a micro low-profile 0.750 carbine gas block, a GI Birdcage flash hider at 1/2x28, a nitride-finished 9310 alloy steel bolt carrier group compatible with 5.56 and .223 and .300 and .350, a Mil-Spec M4 charging handle, an SB Tactical SBA3 black adjustable pistol stabilizing brace, a Mil-Spec heavy-duty 6-position buffer tube, a 3 oz buffer, a recoil spring, an end plate, and a castle nut. Lower receiver 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
• Freefloat Keymod handguard, 6061-T6 aluminum, black
• GI Birdcage flash hider, 1/2x28
• 9310 alloy steel bolt carrier group, nitride finish, 5.56 and .223 and .300 and .350 compatible
• Mil-Spec M4 charging handle
• SB Tactical SBA3 black adjustable pistol stabilizing brace
• Mil-Spec heavy-duty 6-position buffer tube
• 3 oz buffer
• Recoil spring
• End plate
• Castle nut
• Lower receiver not included

Perfect For

• AR-15 pistol builders sourcing a complete .223 Wylde full build kit with the SBA3 brace in an 11.5-inch carbine configuration
• Shooters pairing this kit with an existing AR-15 lower receiver
• Builders looking for a carbine gas freefloat Keymod full 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 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 freefloat Keymod handguard is 6061-T6 aluminum in black, surrounding the barrel without contact and providing Keymod mounting positions for compatible accessories.

Bolt Carrier Group and Charging Handle

The included bolt carrier group is 9310 alloy steel with a nitride finish, compatible with 5.56, .223, .300, and .350 platforms. The BCG and Mil-Spec M4 charging handle work together to cycle the action and complete the upper side component set.

Brace and Buffer System

The SB Tactical SBA3 black adjustable pistol stabilizing brace is included with a Mil-Spec heavy-duty 6-position buffer tube. The buffer system consists of a 3 oz buffer and a recoil spring. An end plate and castle nut complete the rear hardware included with this full build kit.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included.