Davidson Defense Stalwart w/Magpul BTR Brace 11.5-inch Carbine-Gas 1:8 .223 Wylde AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit

Stalwart with Magpul BTR Brace 11.5-inch Carbine-Gas 1-in-8 .223 Wylde AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit

This Davidson Defense Stalwart full build kit includes an 11.5-inch KAK Industry .223 Wylde government-profile barrel, a freefloat M-Lok handguard in aluminum, a 7075-T6 aluminum upper receiver with M4 feed ramps, a 5.56 and .223 compatible bolt carrier group, an AR-15 M4 mil-spec charging handle, a Magpul BTR pistol brace in black polymer, a steel flash can, a mil-spec heavy-duty 6-position buffer tube, a lower parts kit, a 3 oz buffer, a carbine recoil spring, a mil-spec end plate, and a castle nut. Lower receiver not included.

Key Features

• 11.5-inch KAK Industry 4140 CrMoV government-profile barrel in .223 Wylde, 1-in-8 twist, nitride finish, 1-in-2x28 thread pitch
• Carbine-length gas system with 0.750 steel micro low-profile gas block
• Freefloat M-Lok handguard, aluminum, black
• 7075-T6 aluminum upper receiver with M4 feed ramps, anodized finish
• 5.56 and .223 compatible bolt carrier group, 9310 alloy steel, nitride finish
• AR-15 M4 mil-spec charging handle
• Magpul BTR pistol brace, black polymer, mil-spec buffer tube compatible
• Steel flash can, 1-in-2x28 thread pitch
• Mil-spec heavy-duty 6-position buffer tube
• 3 oz buffer and standard carbine recoil spring
• Lower parts kit, mil-spec end plate, and castle nut included
• Lower receiver not included

Perfect For

• Builders seeking a compact .223 Wylde pistol configuration with the Magpul BTR brace
• Those pairing an 11.5-inch KAK Industry barrel with a freefloat M-Lok handguard
• Owners completing a stripped lower receiver with a full .223 Wylde pistol component set
• Those pairing a nitride government-profile barrel with a nitride bolt carrier group

Barrel and Handguard

The 11.5-inch KAK Industry barrel is constructed from 4140 CrMoV steel in a government profile with a nitride finish and a 1-in-8 twist rate. The thread pitch is 1-in-2x28, corresponding to the included steel flash can. The carbine-length gas system pairs with a 0.750 steel micro low-profile gas block positioned beneath the handguard. The freefloat M-Lok 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 is made from 9310 alloy steel 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 buffer tube pairs with the brace for AR-15 and AR-style pistol configurations. The kit also includes a 3 oz buffer, a standard carbine recoil spring, a mil-spec end plate, and a castle nut.

Lower Components

This kit includes a lower parts kit, 3 oz buffer, carbine recoil spring, mil-spec 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.