Davidson Defense Darkmatter w/Magpul BTR Brace 14.5-inch Carbine-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit

Darkmatter with Magpul BTR Brace 14.5-inch Carbine-Gas 1-in-7 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit

This Davidson Defense Darkmatter full build kit includes a 14.5-inch 5.56 NATO government-profile barrel, a 12-inch MX10 M-Lok slim handguard in aluminum, a 7075-T6 aluminum upper receiver with M4 feed ramps, a 5.56 NATO bolt carrier group, an AR-15 M4 mil-spec charging handle, a Magpul BTR pistol brace in black polymer, a GI birdcage flash hider, a 0.750 steel micro low-profile gas block, a mil-spec heavy-duty 6-position aluminum buffer tube, a lower parts kit, a 3 oz buffer, a carbine recoil spring, an end plate, and a castle nut. Lower receiver not included.

Key Features

• 14.5-inch 4150 CrMoV government-profile barrel in 5.56 NATO, 1-in-7 twist, phosphate finish, 1-in-2x28 thread pitch
• Carbine-length gas system with 0.750 steel micro low-profile gas block, phosphate finish
• 12-inch MX10 M-Lok slim handguard, aluminum, black
• 7075-T6 aluminum upper receiver with M4 feed ramps, anodized finish
• 5.56 NATO bolt carrier group, 8620 alloy steel body, 9310 alloy steel bolt head, nitride finish
• AR-15 M4 mil-spec charging handle
• Magpul BTR pistol brace, black polymer, mil-spec buffer tube compatible
• GI birdcage flash hider, 1-in-2x28 thread pitch
• Mil-spec heavy-duty 6-position aluminum buffer tube
• 3 oz buffer and carbine recoil spring
• Lower parts kit, end plate, and castle nut included
• Lower receiver not included

Perfect For

• Builders seeking a 14.5-inch 5.56 NATO pistol configuration with the Magpul BTR brace
• Those pairing a government-profile barrel with a 12-inch MX10 M-Lok slim handguard
• Owners completing a stripped lower receiver with a full 5.56 NATO pistol component set
• Those pairing a phosphate barrel with a nitride bolt carrier group

Barrel and Handguard

The 14.5-inch barrel is constructed from 4150 CrMoV steel in a government profile with a phosphate finish and a 1-in-7 twist rate. The thread pitch is 1-in-2x28, corresponding to the included GI birdcage flash hider. The carbine-length gas system pairs with a 0.750 steel micro low-profile gas block with a phosphate finish, positioned beneath the handguard. The 12-inch MX10 M-Lok slim handguard is made from aluminum in black and keeps the handguard clear of the barrel along its full length.

Upper Receiver and Bolt Carrier Group

The upper receiver is constructed from 7075-T6 aluminum with M4 feed ramps and an anodized finish. The bolt carrier group features an 8620 alloy steel body and a 9310 alloy steel bolt head, both with a nitride finish, and is compatible with 5.56, .223, .300, and .350 configurations. The included AR-15 M4 mil-spec charging handle pairs directly with the upper receiver and bolt carrier group.

Magpul BTR Pistol Brace and Buffer System

The Magpul BTR pistol brace in black polymer is compatible with standard mil-spec buffer tubes and is included as the brace option for this pistol configuration. The mil-spec heavy-duty 6-position aluminum buffer tube pairs with the brace for AR-15 and AR-style pistol configurations. The kit also includes a 3 oz buffer, a carbine recoil spring, an end plate, and a castle nut.

Lower Components

This kit includes a lower parts kit, 3 oz buffer, carbine recoil spring, end plate, and castle nut, providing the components needed to complete a stripped lower receiver. The lower receiver itself is not included.

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