Details
5.56 NATO AR-15 SBR Ready Pistol Full Build Kit | 10.5" Nitride Barrel | Davidson Defense Past Due | 1:8 Twist | FSB | Quad-Rail | Suppressor Ready | No Brace Included
Providing a solid foundation for customizable firearm setups, the Davidson Defense Past Due 5.56 NATO pistol full build kit delivers improved stability and versatile configuration. This kit features a 10.5-inch M4 profile barrel made from 4150 Chrome Moly Vanadium steel with nitride finish and a 1:8 twist rate for improved stability and accuracy across various bullet weights. The carbine-length gas system ensures reliable cycling, making it suitable for various shooting applications. The included quad-rail handguard made of 6061-T6 aluminum and finished with Type III Hard Coat Anodizing measures 7 inches in length, allowing for enhanced accessory attachment options at multiple positions. Constructed from high-quality materials, including a 7075-T6 aluminum upper receiver and a nitride-finished 9310 alloy steel bolt carrier for dependable function, this kit is both SBR and suppressor ready. This SBR Ready configuration ships without a brace, making it ideal for gunsmiths who appreciate the freedom of customized builds.
Key Features
- SBR Ready Configuration – Ships without a brace, allowing you to configure your preferred final setup
- 10.5" Nitride-Finished Barrel | 5.56 NATO Chambering – 4150 Chrome Moly Vanadium steel with M4 profile and 1:8 twist rate
- Full Build Kit – Includes all upper components, bolt carrier group, charging handle, and lower parts kit
- Suppressor Ready – Threaded barrel for suppressor compatibility
- Nitride-Finished 9310 Alloy Steel Bolt Carrier – Dependable function and reliable cycling
- 7075-T6 Aluminum Upper Receiver – High-quality material for long-term durability
- 7" Quad-Rail Handguard – Type III Hard Coat Anodizing with enhanced accessory attachment options
- Front Sight Base – Integrated iron sight capability
- Carbine-Length Gas System – Reliable cycling for various shooting applications
- Type III Hard Coat Anodizing – Superior wear resistance and corrosion protection
Perfect For
- Gunsmiths who appreciate the freedom of customized builds
- Shooters seeking SBR and suppressor-ready capability
- Builders who want to choose their own brace or stock configuration
- Firearms enthusiasts looking for improved stability and accuracy
- AR-15 owners seeking a solid foundation for versatile applications
SBR and Suppressor Ready Flexibility
This kit is both SBR and suppressor ready, providing maximum flexibility for customizable firearm setups. The SBR Ready configuration ships without a brace, giving you complete control over your final build setup. Whether you plan to configure this as a pistol with your preferred brace, or you're prepared to follow applicable federal, state, and local laws for an SBR configuration, this kit provides a solid foundation for your vision. The suppressor-ready threading allows for reduced noise signature and improved recoil management when using a suppressor. The included lower parts kit with buffer tube is compatible with a wide range of braces and stocks for customized builds.
Nitride-Finished M4 Profile Barrel
The 10.5-inch M4 profile barrel made from 4150 Chrome Moly Vanadium steel with nitride finish delivers improved stability and accuracy for long-term performance. The nitride treatment provides superior wear resistance and corrosion protection, maintaining barrel functionality under demanding conditions. The M4 profile is a proven barrel contour that balances weight and rigidity for consistent accuracy. With a 1:8 twist rate, this barrel ensures reliable performance across various bullet weights from lightweight to heavy projectiles, stabilizing ammunition for versatile shooting applications. The carbine-length gas system ensures reliable cycling suitable for various shooting scenarios.
Type III Hard Coat Anodized Quad-Rail
The 7-inch quad-rail handguard made of 6061-T6 aluminum and finished with Type III Hard Coat Anodizing provides enhanced accessory attachment options at 12, 3, 6, and 9 o'clock positions. The Type III Hard Coat Anodizing offers superior wear resistance and corrosion protection compared to standard anodizing, ensuring the handguard maintains its appearance and functionality over extended use. This four-sided Picatinny rail coverage enables secure attachment of lights, lasers, vertical grips, and other accessories. The 7075-T6 aluminum upper receiver provides high-quality construction for long-term durability. The nitride-finished 9310 alloy steel bolt carrier ensures dependable function and reliable cycling.
Solid Foundation for Customizable Setups
This full build kit provides a solid foundation for customizable firearm setups except the lower receiver: high-quality 7075-T6 aluminum upper receiver, 10.5-inch nitride-finished barrel with M4 profile and improved stability, 7-inch quad-rail handguard with Type III Hard Coat Anodizing and enhanced attachment options, nitride-finished 9310 alloy steel bolt carrier for dependable function, charging handle, muzzle device, and lower parts kit including buffer tube and buffer system components. The SBR and suppressor ready design provides the freedom to configure your build for various shooting applications. Ideal for gunsmiths who appreciate customization freedom, this kit delivers the improved accuracy, reliable cycling, and versatile configuration options needed for tactical applications, home defense, and range use in a solid, customizable foundation.
Disclaimer: This kit includes all necessary parts except the lower receiver. SBR Ready configuration ships without a brace. Know and follow all applicable federal, state, and local laws regarding SBR configurations, suppressor use, and don't install a stock unless compliant. Always follow safe handling practices and manufacturer instructions. Verify proper installation of all components including gas system and front sight base before use. Verify suppressor compatibility and ensure proper mounting before firing. Use ammunition appropriate for 5.56 NATO or .223 Remington chambering.
