Davidson Defense Aegis w/ DTT Plan B Radial Brake w/SBA3 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, Freefloat Keymod Handguard, DTT Plan B Radial Brake, SB Tactical SBA3 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. 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 freefloat Keymod handguard in black aircraft-grade aluminum, a micro low-profile 0.750 pistol gas block, a Delta Team Tactical Plan B Radial Hole Brake in 17-4 stainless steel with a black nitride finish at 5/8x24, a nitride-finished 9310 alloy steel bolt carrier group, a Mil-Spec M4 charging handle, an SB Tactical SBA3 black adjustable pistol stabilizing brace, a black aluminum buffer tube, a 3 oz aluminum buffer with internal steel weights, a recoil spring, a Mil-Spec metal receiver end plate, and a castle nut. Lower receiver not included.

Key Features

• 7075-T6 aluminum upper receiver, anodized finish
• 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 0.750 gas block
• Freefloat Keymod handguard, aircraft-grade aluminum, black
• Delta Team Tactical Plan B Radial Hole Brake, 17-4 stainless steel, black nitride finish, 5/8x24
• 9310 alloy steel bolt carrier group, nitride finish
• Mil-Spec M4 charging handle
• SB Tactical SBA3 black adjustable pistol stabilizing brace
• Black aluminum buffer tube
• 3 oz aluminum buffer with internal steel weights
• Recoil spring
• Mil-Spec metal 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 SBA3 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 0.750 gas block to cover the gas regulation side of the upper.

Plan B Muzzle Device

The DTT Plan B Radial Hole Brake is 17-4 stainless steel with a black nitride finish, threaded at 5/8x24. 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, forming the structural core of the upper assembly. The freefloat Keymod handguard is aircraft-grade aluminum in black, surrounding the barrel without contact and providing Keymod mounting positions for compatible accessories.

Bolt Carrier Group and Charging Handle

The included bolt carrier group is 9310 alloy steel with a nitride finish. 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 SB Tactical SBA3 black adjustable pistol stabilizing brace is included with a black aluminum buffer tube. The buffer system consists of a 3 oz aluminum buffer with internal steel weights and a recoil spring. A Mil-Spec metal 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.