Davidson Defense Longbow 10.5" 5.56 NATO AR-15 Pistol Build Kit, 7" Quad Rail Handguard, 1:8, SBR Ready

Longbow 10.5" 5.56 NATO AR-15 Pistol Build Kit, 7" Quad Rail Handguard, 1:8, SBR Ready

This is a complete 5.56 NATO AR-15 pistol build kit with everything you need except the lower receiver. The Longbow combines a 10.5" nitride barrel, quad-rail handguard, and USA-made bolt carrier group into one package. It's built for compact configurations and ships SBR Ready, meaning you can set it up as either a pistol or short-barreled rifle depending on your final component choices.

Key Features

• 10.5" nitride 4150 chrome moly barrel with 1:8 twist rate, optimized for 5.56 NATO and compatible with .223 Remington, .300 Blackout, and .350 Legend
• 7" quad-rail handguard with four-sided Picatinny rail system for optics and accessory mounting
• 7075-T6 aluminum upper receiver with M4 feed ramps and anodized finish
• USA-made bolt carrier group in 8620 alloy steel with nitride finish
• Complete mil-spec lower parts kit, buffer tube, buffer, recoil spring, castle nut, and end plate
• Tanker-style three-port muzzle brake with crush washer
• A2-style front sight base with USA-made steel front sight post
• Carbine-length gas system
• SBR Ready configuration

Perfect For

• Builders looking for a compact 5.56 NATO platform with modular setup options
• Shooters who want a complete upper and lower parts kit without the serialized receiver
• Those planning SBR conversions or pistol configurations
• Users prioritizing quad-rail versatility for accessory mounting

SBR Ready Configuration

This kit ships without a brace, giving you the flexibility to select your own final setup based on your intended use. The configuration is designed for builders who want to choose between a pistol brace for pistol configuration or a stock for SBR compliance. All components are included except the lower receiver and your selected brace or stock option.

Compact Barrel and Gas System

The 10.5" barrel with carbine-length gas system strikes a balance between velocity and maneuverability. This combination is ideal for close to mid-range shooting while maintaining the reliability of a proven gas system design. The 1:8 twist rate handles a wide range of 5.56 NATO ammunition weights effectively.

Quad Rail Handguard and Mounting Ecosystem

The 7" quad-rail handguard provides four full sides of Picatinny rail real estate. This gives you maximum flexibility for mounting lights, lasers, vertical grips, or other accessories without compromise. The 6061-T6 aluminum construction keeps weight down while maintaining rigidity.

USA-Made Bolt Carrier Group

The complete bolt carrier group uses 8620 alloy steel with nitride finish, offering durability and corrosion resistance. Made in the USA, this BCG is compatible with 5.56 NATO, .223 Remington, .300 Blackout, and .350 Legend platforms, giving you platform flexibility if you decide to build additional uppers.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Ships without a brace. Do not attach a stock unless compliant with applicable laws. Lower receiver not included.