Davidson Defense Aegis 16-inch Pistol-Gas 1:8 .300 BLK AR-15 Freefloat M-Lok Handguard Rifle Complete Upper Build

Davidson Defense Aegis AR-15 Complete Upper - 16-inch, .300 Blackout, Pistol Gas, M-Lok Freefloat Handguard

The Davidson Defense Aegis is a .300 Blackout AR-15 complete upper built around a 7075-T6 aluminum upper receiver with an anodized finish and M4 feed ramps. The build includes a 16-inch H-Bar profile Springer barrel in 4150 chrome moly vanadium steel with a phosphate finish, a 1:8 twist rate, and a 5/8x24 thread pitch, a 15-inch freefloat M-Lok handguard in black 6061-T6 aluminum, a 0.75 pistol gas block, a GI Birdcage flash hider in manganese phosphate at 5/8x24, a nitride-finished 9310 alloy steel bolt carrier group compatible with 5.56 and .223 and .300 and .350, and a Mil-Spec M4 charging handle.

Key Features

• 7075-T6 aluminum upper receiver, anodized finish, M4 feed ramps
• 16-inch H-Bar profile Springer barrel, 4150 chrome moly vanadium, phosphate finish
• .300 Blackout
• 1:8 twist rate
• 5/8x24 thread pitch
• Pistol gas system
• 0.75 gas block
• 15-inch freefloat M-Lok handguard, 6061-T6 aluminum, black
• GI Birdcage flash hider, manganese phosphate, 5/8x24
• 9310 alloy steel bolt carrier group, nitride finish, 5.56 and .223 and .300 and .350 compatible
• Mil-Spec M4 charging handle

Perfect For

• AR-15 builders sourcing a complete .300 Blackout upper with BCG and charging handle included in a 16-inch pistol gas configuration
• Shooters pairing this complete upper with an existing AR-15 lower assembly
• Builders looking for a pistol gas freefloat M-Lok complete upper in .300 Blackout

Springer Barrel and Gas System

The Springer barrel is a 16-inch H-Bar profile unit in 4150 chrome moly vanadium steel with a phosphate 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 0.75 gas block to cover the gas regulation side of the upper. A GI Birdcage flash hider in manganese phosphate at 5/8x24 rounds out the muzzle end.

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 15-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 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 charging handle work together to cycle the action and complete the upper side component set needed to run this complete upper on a lower receiver.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws.