Davidson Defense Aegis w/ DTT Plan B Radial Brake w/SBA3 Brace 7.5-inch Pistol-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit

Davidson Defense Aegis AR-15 Pistol Full Build Kit - 7.5-inch, 5.56 NATO, Pistol Gas, M-Lok Freefloat Handguard, DTT Plan B Radial Brake, SB Tactical SBA3 Brace

The Davidson Defense Aegis is a 5.56 NATO AR-15 pistol full build kit built around a 7075-T6 aluminum upper receiver with an anodized finish and M4 feed ramps. The kit includes a Bear Creek Arsenal Irithyll 7.5-inch contour profile barrel in 4150 chrome moly vanadium steel with a phosphate finish, a 1:7 twist rate, and a 1/2x28 thread pitch, a freefloat M-Lok handguard in black 6061-T6 aluminum, a micro low-profile 0.750 pistol gas block, a Plan B Radial Hole Brake with an 18-hole black nitride finish at 1/2x28, a nitride-finished 9310 alloy steel bolt carrier group compatible with 5.56 and .223 and .300 and .350, a Mil-Spec M4 aluminum charging handle, an SB Tactical SBA3 black polymer adjustable pistol stabilizing brace, a Mil-Spec heavy-duty 6-position buffer tube, a 3 oz buffer, a standard carbine recoil spring, a Mil-Spec receiver end plate, and a castle nut. Lower receiver not included.

Key Features

• 7075-T6 aluminum upper receiver, anodized finish, M4 feed ramps
• Bear Creek Arsenal Irithyll 7.5-inch contour profile barrel, 4150 chrome moly vanadium, phosphate finish
• 5.56 NATO
• 1:7 twist rate
• 1/2x28 thread pitch
• Pistol gas system
• Micro low-profile 0.750 gas block
• Freefloat M-Lok handguard, 6061-T6 aluminum, black
• Plan B Radial Hole Brake, 18-hole, black nitride finish, 1/2x28
• 9310 alloy steel bolt carrier group, nitride finish, 5.56 and .223 and .300 and .350 compatible
• Mil-Spec M4 aluminum charging handle
• SB Tactical SBA3 black polymer adjustable pistol stabilizing brace
• Mil-Spec heavy-duty 6-position buffer tube
• 3 oz buffer
• Standard carbine recoil spring
• Mil-Spec receiver end plate
• Castle nut
• Lower receiver not included

Perfect For

• AR-15 pistol builders sourcing a complete 5.56 NATO full build kit with the DTT Plan B muzzle device and SBA3 brace in a compact 7.5-inch configuration
• Shooters pairing this kit with an existing AR-15 lower receiver
• Builders looking for a compact 5.56 NATO pistol build kit with a Plan B compatible muzzle device

Bear Creek Arsenal Irithyll Barrel and Gas System

The Bear Creek Arsenal Irithyll barrel is a 7.5-inch contour profile unit in 4150 chrome moly vanadium steel with a phosphate finish, chambered in 5.56 NATO with a 1:7 twist rate and a 1/2x28 thread pitch. The pistol-length gas system pairs with a micro low-profile 0.750 gas block to cover the gas regulation side of the upper.

Plan B Muzzle Device

The Plan B Radial Hole Brake features an 18-hole pattern with a black nitride finish, threaded at 1/2x28. It supports modular suppressor mounting ecosystems and serves as the attachment interface for Plan B compatible suppressor systems.

Upper Receiver and Handguard

The upper receiver is 7075-T6 aluminum with an anodized finish and M4 feed ramps, forming the structural core of the upper assembly. The freefloat M-Lok handguard is 6061-T6 aluminum in black, surrounding the barrel without contact and providing M-Lok mounting positions for compatible accessories.

Bolt Carrier Group and Charging Handle

The included bolt carrier group is 9310 alloy steel with a nitride finish, compatible with 5.56, .223, .300, and .350 platforms. The BCG and Mil-Spec M4 aluminum charging handle work together to cycle the action and complete the upper side component set.

Brace and Buffer System

The SB Tactical SBA3 black polymer adjustable pistol stabilizing brace is included with a Mil-Spec heavy-duty 6-position buffer tube. The buffer system consists of a 3 oz buffer and a standard carbine recoil spring. A Mil-Spec receiver end plate and castle nut complete the rear hardware included with this full build kit.

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