Davidson Defense Keen Beacon w/Gauntlet Arms Brace 14.5-inch Carbine-Gas 1:7 5.56 NATO AR-15 Freefloat Quad-Rail Handguard Pistol Full Build Kit

Davidson Defense Keen Beacon 14.5-inch 5.56 NATO AR-15 Pistol Full Build Kit with Gauntlet Arms Brace

The Davidson Defense Keen Beacon Full Build Kit provides all components needed to complete an AR-15 pistol chambered in 5.56 NATO. This kit features a 14.5-inch barrel with carbine-length gas system, 10-inch free-float quad-rail handguard, complete bolt carrier group, charging handle, and polymer Gauntlet Arms stabilizing brace. The upper assembly pairs a 7075-T6 aluminum receiver with a 4150 CrMoV steel barrel.

Key Features

• 14.5-inch 4150 CrMoV steel barrel, government profile, 1:7 twist rate, phosphate finish
• Carbine-length gas system with micro low-profile steel gas block
• 10-inch free-float quad-rail handguard, 6061-T6 aluminum, black finish
• Complete bolt carrier group, 9310 alloy steel with nitride finish
• AR-15 upper receiver, 7075-T6 aluminum with M4 feed ramps
• Mil-spec AR-15 charging handle
• TPI GI A2 birdcage flash hider, 1/2x28 threading
• Polymer Gauntlet Arms stabilizing brace, black
• Includes buffer tube, buffer, recoil spring, castle nut, end plate, and lower parts kit

Perfect For

• Builders completing an AR-15 pistol platform
• Shooters requiring a compact 5.56 NATO configuration
• Applications where quad-rail accessory mounting is preferred
• Users seeking complete component packages

Barrel Configuration

The 14.5-inch government profile barrel is manufactured from 4150 chrome moly vanadium steel with a phosphate finish. The 1:7 twist rate stabilizes a wide range of 5.56 NATO and .223 Remington projectile weights. Carbine-length gas system timing supports reliable cycling with standard ammunition.

Upper Assembly and Handguard

The upper receiver features M4 feed ramps and anodized 7075-T6 aluminum construction. The 10-inch quad-rail handguard provides four full-length Picatinny rail sections for lights, grips, and other accessories. Free-float attachment allows barrel harmonics to remain unaffected by accessory weight or pressure.

Bolt Carrier Group and Charging Handle

The complete bolt carrier group includes a 9310 alloy steel bolt with nitride finish for corrosion resistance and reduced friction. The mil-spec charging handle provides standard operation across AR-15 platforms.

Gauntlet Arms Brace

The polymer stabilizing brace attaches to the included buffer tube assembly. This component provides a point of contact for improved control during use.

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