Davidson Defense Aegis 16" AR-15 5.56 NATO Rifle Build Kit with Gauntlet Arms Stock, Carbine-Gas

Aegis 16" AR-15 5.56 NATO Rifle Build Kit with Gauntlet Arms Stock, Carbine-Gas

The Aegis is a complete rifle build kit that delivers reliable 5.56 NATO performance in a practical carbine package. It pairs a 16-inch nitride-finished barrel with a freefloat M-Lok handguard, Gauntlet Arms adjustable stock, and all the components you need to assemble a functional AR-15 platform. This kit includes the upper assembly, bolt carrier group, charging handle, lower parts kit, buffer system, and stock. The lower receiver is not included.

Key Features

• 16-inch 4150 chrome moly barrel with 1:7 twist rate and nitride finish for corrosion resistance
• Freefloat M-Lok handguard for accessory mounting flexibility and barrel clearance
• Carbine-length gas system optimized for 16-inch barrel cycling
• Gauntlet Arms adjustable nylon reinforced polymer stock for comfort and length-of-pull customization
• 7075-T6 aluminum upper receiver with mil-spec anodized finish
• Mil-spec charging handle and 8620 alloy steel bolt carrier group with nitride finish
• GI birdcage flash hider with manganese phosphate finish and 1/2x28 thread pitch
• 3 oz buffer weight tuned for reliable cycling

Perfect For

• Shooters building their first AR-15 platform
• Those seeking a balanced carbine for general purpose shooting and training
• Budget-conscious builders prioritizing reliability and proven components
• Users wanting a practical 16-inch configuration for indoor and outdoor ranges

Practical Carbine Platform

The 16-inch barrel strikes a balance between velocity and handling. The 1:7 twist rate stabilizes a wide range of 5.56 ammunition, from lighter 55-grain rounds to heavier 77-grain loads. The carbine-length gas system keeps the overall profile compact while maintaining consistent cycling reliability. This configuration works well for shooters transitioning from AR pistols to full-size rifles or those who prefer a shorter, more maneuverable platform.

Freefloat Handguard Advantage

The M-Lok handguard floats free from the barrel, eliminating contact that can affect accuracy. This design allows the barrel to vibrate naturally without external interference, improving consistency shot to shot. The aluminum construction keeps weight minimal while the M-Lok slots provide numerous mounting points for optics, lights, or other tactical accessories without requiring specialized rail systems.

Gauntlet Arms Stock Design

The adjustable Gauntlet Arms stock uses nylon reinforced polymer for durability without excessive weight. The adjustable length-of-pull accommodates different body types and shooting positions, making it practical for both prone shooting and tactical applications. The carbine-profile stock is compact enough for vehicle storage or tight shooting positions while maintaining a comfortable cheek weld for optic use.

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