Details
Stalwart with SB Tactical SBA5 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, an SB Tactical SBA5 pistol stabilizing brace, 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. 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, 8620 alloy steel body, 9310 alloy steel bolt head, nitride finish
- AR-15 M4 mil-spec charging handle
- SB Tactical SBA5 pistol stabilizing brace
- 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
- Lower receiver not included
Perfect For
- Builders seeking a compact .223 Wylde pistol configuration with the SB Tactical SBA5 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 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.
SB Tactical SBA5 Pistol Brace and Buffer System
The SB Tactical SBA5 pistol stabilizing brace is included as the brace option for this pistol configuration. The mil-spec heavy-duty 6-position buffer tube pairs with the SBA5 brace for AR-15 and AR-style pistol configurations. The kit also includes a 3 oz buffer, a recoil spring, an end plate, and a castle nut.
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. Lower receiver not included.
