Davidson Defense Aegis Lightweight w/SBA3 Brace 10.5-inch Carbine-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit

Davidson Defense Aegis Lightweight AR-15 Pistol Full Build Kit with SB Tactical SBA3 Brace - 10.5-inch 5.56 NATO Carbine-Gas 1:7 Freefloat M-Lok Handguard

The Davidson Defense Aegis Lightweight with SB Tactical SBA3 Brace is an AR-15 pistol full build kit chambered in 5.56 NATO with a 10.5-inch government profile barrel. The kit includes the upper assembly, bolt carrier group, charging handle, SB Tactical SBA3 adjustable pistol stabilizing brace, mil-spec heavy-duty 6-position aluminum buffer tube, 3 oz carbine buffer, lower parts kit, and all associated buffer system hardware. The lower receiver is not included.

Key Features

• 10.5-inch 4150 CrMoV steel government profile barrel
• Phosphate barrel finish
• 1:7 twist rate
• 1-in-2x28 thread pitch
• Carbine-length gas system with .750 O.D. phosphate-finished steel micro low-profile gas block
• Stainless steel carbine-length gas tube
• 7075-T6 aluminum upper receiver with M4 feed ramps, anodized finish
• 10-inch freefloat M-Lok handguard in anodized 6061-T6 aluminum
• Complete bolt carrier group with 9310 alloy steel bolt head and 8620 alloy steel body, nitride finish
• Mil-spec M4 charging handle in anodized aluminum
• GI birdcage flash hider with manganese phosphate finish, 1-in-2x28 thread pitch
• SB Tactical SBA3 adjustable pistol stabilizing brace in black
• Mil-spec heavy-duty 6-position aluminum buffer tube
• 3 oz carbine buffer

Perfect For

• AR-15 pistol builders sourcing a complete kit around a 10.5-inch 5.56 NATO upper
• Builders completing a stripped mil-spec AR-15 lower receiver
• Shooters running a freefloat M-Lok handguard configuration
• Builders adding an SB Tactical SBA3 adjustable brace to an AR-15 pistol build

Barrel and Gas System

The 10.5-inch government profile barrel is 4150 CrMoV steel with a phosphate finish and a 1:7 twist rate. The muzzle is threaded at 1-in-2x28 and pairs with the included GI birdcage flash hider in manganese phosphate finish. The carbine-length gas system uses a .750 O.D. phosphate-finished steel micro low-profile gas block positioned beneath the handguard, paired with a stainless steel carbine-length gas tube.

Upper Receiver and Handguard

The upper receiver is 7075-T6 aluminum with M4 feed ramps and an anodized finish. The 10-inch freefloat M-Lok handguard is anodized 6061-T6 aluminum in black, providing a clean forend with M-Lok accessory slots along its surface. The handguard length matches the 10.5-inch barrel, with the muzzle device providing clearance beyond the handguard.

Bolt Carrier Group and Charging Handle

The included bolt carrier group is a complete AR-15 unit with a 9310 alloy steel bolt head and an 8620 alloy steel body, finished in nitride. It is compatible with 5.56 NATO, .223 Remington, .300 Blackout, and .350 Legend configurations. The mil-spec M4 charging handle is anodized aluminum and completes the upper component set.

SB Tactical SBA3 Brace and Buffer System

The SB Tactical SBA3 is an adjustable pistol stabilizing brace in black that pairs with the included mil-spec heavy-duty 6-position aluminum buffer tube. The 3 oz carbine buffer, lower parts kit, and all associated buffer system hardware cover the core lower completion components outside the serialized lower receiver.

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