Details
Warden Duty 10.5-Inch 5.56 NATO AR-15 Pistol Full Build Kit with Gauntlet Arms Brace
This full build kit combines a 10.5-inch 4150 CrMoV barrel with a freefloat Keymod handguard, chambered in 5.56 NATO. The kit includes an anodized 7075-T6 aluminum upper receiver with M4 feed ramps, micro low-profile gas block, carbine-length gas system, GI birdcage flash hider, mil-spec charging handle, 5.56x45mm QPQ nitride bolt carrier group, Gauntlet Arms polymer stabilizing brace, heavy-duty pistol buffer tube, 3 oz carbine buffer, carbine recoil spring, castle nut, end plate, and lower parts kit. Lower receiver not included.
Key Features
- 10.5-inch government profile barrel, 4150 CrMoV steel with phosphate finish, 1:7 twist rate
- Freefloat Keymod handguard, aluminum construction, slim profile, black
- Anodized AR-15 upper receiver with M4 feed ramps, 7075-T6 aluminum
- Carbine-length gas system with .750 micro low-profile gas block
- AR-15 5.56x45mm QPQ nitride bolt carrier group, 9310 alloy steel, made in the USA
- Gauntlet Arms polymer stabilizing brace, nylon reinforced polymer, black
- Heavy-duty pistol buffer tube with 3 oz carbine buffer, carbine recoil spring, castle nut, and end plate
- 1/2x28 threaded barrel with GI birdcage flash hider
Perfect For
- Complete 5.56 NATO pistol builds requiring only a lower receiver
- Shooters prioritizing stabilizing brace equipped configurations
- Builders seeking government profile barrels with complete component sets
- Configurations demanding freefloat Keymod handguards with all required lower parts
5.56 NATO Chambering
5.56 NATO chambering provides compatibility with both 5.56 NATO and .223 Remington ammunition. The 1:7 twist rate stabilizes a wide range of bullet weights including heavier projectiles up to 77 grains.
Gauntlet Arms Stabilizing Brace
The Gauntlet Arms polymer stabilizing brace provides a lightweight platform for AR-15 pistol configurations. The nylon reinforced polymer construction pairs with the included heavy-duty pistol buffer tube, 3 oz carbine buffer, carbine recoil spring, castle nut, and end plate.
QPQ Nitride Bolt Carrier Group
The 5.56x45mm bolt carrier group features QPQ nitride finish over 9310 alloy steel. The nitride treatment provides corrosion resistance and surface hardness while reducing friction. Made in the USA.
Carbine-Length Gas System
This kit uses a carbine-length gas system with a stainless gas tube and .750 micro low-profile gas block positioned beneath the handguard. The carbine-length configuration is optimized for the 10.5-inch barrel length.
Compatibility and Assembly
This full build kit is compatible with mil-spec AR-15 lower receivers. All components use standard AR-15 specifications and threading, including the 1/2x28 TPI muzzle threads matching the included GI birdcage flash hider.
Lower receiver not included. Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws.
