Davidson Defense Stalwart 11.5-inch Carbine-Gas 1:8 .223 Wylde AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit, SBR Ready

Stalwart 11.5-inch Carbine-Gas 1-in-8 .223 Wylde AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit SBR Ready

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, a 5.56 and .223 compatible bolt carrier group, an AR-15 M4 mil-spec aluminum charging handle, a steel flash can, a mil-spec heavy-duty 6-position buffer tube, a lower parts kit, a 3 oz buffer, a recoil spring, an end plate, and a castle nut. This kit ships without a brace. 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 direct impingement gas system with 0.750 steel micro low-profile gas block, phosphate finish
• Freefloat M-Lok handguard, aluminum, black
• 7075-T6 aluminum upper receiver, anodized finish
• 5.56 and .223 compatible bolt carrier group, 9310 alloy steel, nitride finish
• AR-15 M4 mil-spec aluminum charging handle, anodized finish
• Steel flash can, 1-in-2x28 thread pitch
• Mil-spec heavy-duty 6-position buffer tube
• 3 oz buffer
• Lower parts kit, recoil spring, end plate, and castle nut included
• SBR Ready configuration, ships without a brace
• Lower receiver not included

Perfect For

• Builders seeking a compact .223 Wylde pistol configuration with brace selection flexibility
• Those selecting their own brace for a custom SBR Ready .223 Wylde pistol build
• Owners completing a stripped lower receiver with a full .223 Wylde pistol component set
• Those pairing a KAK Industry nitride 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 direct impingement gas system pairs with a 0.750 steel micro low-profile gas block with a phosphate finish, 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 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 is aluminum with an anodized finish and pairs directly with the upper receiver and bolt carrier group.

SBR Ready Configuration

This kit is configured as SBR Ready and ships without a brace, allowing the buyer to select their own preferred brace or configuration. The mil-spec heavy-duty 6-position buffer tube and lower components are included to support a complete lower build. The final configuration is dependent on the brace selected separately by the buyer.

Lower Components

This kit includes a lower parts kit, 3 oz buffer, 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. Ships without a brace. Do not attach a stock unless compliant with applicable laws. Lower receiver not included.