Details
5.56 NATO AR-15 Pistol Full Build Kit | 10.5" Nitride Barrel | Gauntlet Arms Brace | Davidson Defense Past Due | 1:8 Twist | FSB | Quad-Rail | Suppressor Ready
An ideal choice for gunsmiths looking for a reliable 5.56 NATO AR-15 platform, the Davidson Defense Past Due pistol full build kit delivers precision and durable construction. This kit features a 10.5-inch carbine gas barrel constructed from 4150 Chrome Moly Vanadium with a 1:8 twist rate, ensuring consistent accuracy and durability across various bullet weights. The barrel has a nitride finish and a thread pitch of 1/2x28, making it suppressor ready for versatile shooting applications. The assembly includes a drop-in, two-piece 7-inch quad-rail handguard made of 6061-T6 aluminum, offering ample space for tactical accessories at multiple mounting positions. The upper receiver is crafted from 7075-T6 aluminum and finished with anodized protection for enhanced corrosion resistance. The kit also features a robust AR-15 M4 charging handle and a bolt carrier made of 8620 alloy steel with nitride finish for long-term reliability. A Gauntlet Arms nylon reinforced polymer brace provides stability and shooter control, completing this full build kit perfect for your custom pistol configuration.
Key Features
- 10.5" Nitride-Finished Barrel | 5.56 NATO Chambering – 4150 Chrome Moly Vanadium with 1:8 twist rate for precision and durability
- Gauntlet Arms Nylon Reinforced Polymer Brace – Enhanced stability and shooter control
- Full Build Kit – Includes all upper components, bolt carrier group, charging handle, and lower parts kit
- Suppressor Ready – 1/2x28 thread pitch for suppressor compatibility
- 8620 Alloy Steel Bolt Carrier – Nitride finish for long-term reliability
- Drop-In 2-Piece 7" Quad-Rail Handguard – 6061-T6 aluminum with ample space for tactical accessories
- 7075-T6 Aluminum Upper Receiver – Anodized protection for enhanced corrosion resistance
- Front Sight Base – Integrated iron sight capability
- AR-15 M4 Charging Handle – Robust and reliable operation
- Carbine Gas System – Reliable cycling across ammunition types
Perfect For
- Gunsmiths looking for a reliable 5.56 NATO platform
- Shooters seeking suppressor-ready capability in custom pistol configurations
- Builders who value precision and durability with ample accessory space
- Home defenders demanding stability and versatile shooting applications
- AR-15 owners seeking a complete full build kit solution
Gauntlet Arms Brace and Stability
The Gauntlet Arms nylon reinforced polymer brace provides enhanced stability and shooter control in a durable, lightweight design. The nylon reinforced polymer construction offers excellent rigidity and impact resistance while keeping weight manageable. This brace improves accuracy and comfort during shooting, making the 5.56 NATO pistol platform more controllable and enjoyable to shoot. The design provides the support needed for consistent performance across various shooting applications. Paired with the included buffer system components, this brace ensures reliable operation optimized for the carbine gas system.
Suppressor-Ready Nitride Barrel
The 10.5-inch carbine gas barrel constructed from 4150 Chrome Moly Vanadium with nitride finish ensures precision and durability for long-term performance. The nitride treatment provides superior wear resistance and corrosion protection, maintaining barrel functionality under demanding conditions. With a 1:8 twist rate, this barrel delivers consistent accuracy across various bullet weights from lightweight to heavy projectiles. The thread pitch of 1/2x28 makes this kit suppressor ready, providing compatibility with suppressors and various muzzle devices for versatile shooting applications including reduced noise signature and improved recoil management.
Quad-Rail Handguard and Anodized Upper
The drop-in, two-piece 7-inch quad-rail handguard made of 6061-T6 aluminum offers ample space for tactical accessories at 12, 3, 6, and 9 o'clock positions. This four-sided Picatinny rail coverage provides secure mounting for lights, lasers, vertical grips, and other accessories. The drop-in design simplifies installation while providing reliable attachment points. The upper receiver crafted from 7075-T6 aluminum with anodized protection provides enhanced corrosion resistance and long-term durability. The bolt carrier made of 8620 alloy steel with nitride finish delivers long-term reliability and dependable cycling. The Front Sight Base provides integrated iron sight capability.
Perfect for Custom Pistol Configurations
This full build kit provides everything needed for custom pistol configurations except the lower receiver: upper receiver with anodized protection, 10.5-inch nitride-finished barrel with suppressor-ready threading, drop-in 2-piece 7-inch quad-rail handguard with ample accessory space, bolt carrier made of 8620 alloy steel with nitride finish, robust AR-15 M4 charging handle, muzzle device, and lower parts kit including Gauntlet Arms nylon reinforced polymer brace and buffer system components. The combination of precision, durability, suppressor-ready capability, and enhanced stability creates an ideal choice for gunsmiths seeking a reliable 5.56 NATO AR-15 platform. This complete full build kit delivers the performance needed for tactical applications, home defense, and versatile shooting applications in a custom pistol configuration.
Disclaimer: This kit includes all necessary parts except the lower receiver. Always follow safe handling practices and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws regarding pistol builds, stabilizing braces, and suppressor use. Verify proper installation of all components including gas system and front sight base before use. Verify suppressor compatibility with 1/2x28 thread pitch and ensure proper mounting before firing. Use ammunition appropriate for 5.56 NATO or .223 Remington chambering.
