Davidson Defense Aegis w/ DTT Plan B Radial Brake w/Magpul BTR Brace 8.5-inch Pistol-Gas 1:8 .300 BLK AR-15 Freefloat Keymod Handguard Pistol Full Build Kit

Davidson Defense Aegis AR-15 Pistol Full Build Kit - 8.5-inch, .300 Blackout, Pistol Gas, M-Lok Freefloat Handguard, DTT Plan B Radial Brake, Magpul BTR Brace

The Davidson Defense Aegis is a .300 Blackout 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 an 8.5-inch heavy profile barrel in 4150 chrome moly vanadium steel with a parkerized finish, a 1:8 twist rate, and a 5/8x24 thread pitch, a 7-inch freefloat M-Lok handguard in black 6061-T6 aluminum, a micro low-profile 0.75 pistol gas block, a Delta Team Tactical Plan B Muzzle Radial Hole Brake at 5/8x24, a Recoil Technologies nitride-finished 8620 alloy steel bolt carrier group compatible with 5.56 and .223 and .300 and .350, a Mil-Spec M4 charging handle, a Magpul BTR black pistol brace compatible with standard Mil-Spec buffer tubes, a Mil-Spec heavy-duty 6-position buffer tube, a 3 oz standard carbine 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
• 8.5-inch heavy profile barrel, 4150 chrome moly vanadium, parkerized finish
• .300 Blackout
• 1:8 twist rate
• 5/8x24 thread pitch
• Pistol gas system
• Micro low-profile 0.75 gas block
• 7-inch freefloat M-Lok handguard, 6061-T6 aluminum, black
• Delta Team Tactical Plan B Muzzle Radial Hole Brake, 5/8x24
• Recoil Technologies 8620 alloy steel bolt carrier group, nitride finish, 5.56 and .223 and .300 and .350 compatible
• Mil-Spec M4 charging handle
• Magpul BTR black pistol brace, Mil-Spec buffer tube compatible
• Mil-Spec heavy-duty 6-position buffer tube
• 3 oz standard carbine 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 .300 Blackout full build kit with the DTT Plan B muzzle device and Magpul BTR brace
• Shooters pairing this kit with an existing AR-15 lower receiver
• Builders looking for a compact .300 Blackout pistol build kit with a Plan B compatible muzzle device

Barrel and Gas System

The barrel is an 8.5-inch heavy profile unit in 4150 chrome moly vanadium steel with a parkerized finish, chambered in .300 Blackout with a 1:8 twist rate and a 5/8x24 thread pitch. The pistol-length gas system pairs with a micro low-profile 0.75 gas block to cover the gas regulation side of the upper.

Plan B Muzzle Device

The DTT Plan B Muzzle Radial Hole Brake threads at 5/8x24 and supports modular suppressor mounting ecosystems, serving 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 7-inch 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 Recoil Technologies bolt carrier group is 8620 alloy steel with a nitride finish, compatible with 5.56, .223, .300, and .350 platforms. The BCG and Mil-Spec M4 charging handle work together to cycle the action and complete the upper side component set.

Brace and Buffer System

The Magpul BTR black pistol brace is compatible with standard Mil-Spec buffer tubes and is included with a Mil-Spec heavy-duty 6-position buffer tube. The buffer system consists of a 3 oz standard carbine 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.