Details
Davidson Defense Aftermath 10.5" 5.56 NATO SBR Ready Full Build Kit | 4150 CMV Nitride | Carbine-Gas | FSB | Billet Slick Side | Quad-Rail
The Davidson Defense Aftermath 10.5" 5.56 NATO SBR Ready full build kit is engineered for versatility and reliability with streamlined slick side aesthetics and flexible configuration options. Built around a 10.5-inch barrel made from 4150 Chrome Moly Vanadium steel with nitride finish for enhanced durability and corrosion resistance, this kit delivers consistent performance. Designed with a 1:8 twist rate, it excels in stabilizing a variety of projectile weights from 55-grain to 77-grain bullets, making it suitable for multiple shooting applications. The carbine-length gas system with A2 front sight base ensures efficient operation and performance. The kit includes a 6061-T6 billet aluminum upper receiver with slick side design and black anodized finish, offering a lightweight yet robust platform. The carbine-length 2-piece quad-rail handguard allows for extensive customization and attachments at multiple positions. The kit includes a complete bolt carrier group made from high-quality steel, Mil-Spec charging handle, mil-spec heavy-duty 6-position buffer tube, and all necessary lower parts. This SBR Ready build kit ships without a brace, offering the freedom to tailor your AR-15 to your specifications. This kit includes everything except the lower receiver.
Key Features
- 10.5" Barrel: 4150 Chrome Moly Vanadium steel with nitride finish and 1:8 twist rate for durability and versatile projectile stabilization
- Carbine-Length Gas System: Efficient operation with A2 front sight base (FSB) gas block for classic sight configuration
- Complete Bolt Carrier Group: Made from high-quality steel for dependable operation and consistent cycling
- Mil-Spec Charging Handle: Standard Mil-Spec design for reliable operation and broad compatibility
- 6061-T6 Billet Aluminum Upper Receiver: Slick side design with black anodized finish for lightweight yet robust platform
- Carbine-Length 2-Piece Quad-Rail Handguard: Allows for extensive customization and attachments
- Mil-Spec Heavy-Duty 6-Position Buffer Tube: Robust construction for reliable operation and configuration flexibility
- A2 Front Sight Base: Standard military-spec FSB for proven sight configuration
- SBR Ready Configuration: Ships without a brace—tailor your build to your specifications
- Complete Lower Parts Kit: Includes all necessary components for lower receiver assembly
- Full Build Kit: Includes everything to complete the build except the lower receiver
Perfect For
- Gunsmiths and Custom Builders seeking a versatile compact build kit with streamlined slick side aesthetics and SBR Ready flexibility
- Builders who want the freedom to select their own brace or stock configuration based on their specifications
- Home Defense and CQB Applications where maneuverability and reliable cycling are critical
- Shooters wanting extensive customization options with a lightweight yet robust platform
Barrel Construction and Nitride Finish
The 10.5-inch barrel is made from 4150 Chrome Moly Vanadium steel, a proven material choice for strength and durability in compact barrel configurations. The nitride finish (nitrogen treatment) enhances surface hardness and provides superior corrosion resistance, ensuring enhanced durability and consistent performance across extended shooting sessions and varied environmental conditions. The 1:8 twist rate excels in stabilizing a variety of projectile weights, accommodating ammunition from lightweight 55-grain bullets for high-velocity applications to heavier 77-grain match projectiles. This versatile twist rate makes it suitable for multiple shooting applications, delivering dependable performance and accuracy in the compact 10.5-inch configuration.
Carbine Gas System and Front Sight Base Design
The carbine-length gas system is optimized for shorter barrel lengths like 10.5 inches, ensuring efficient operation and performance with consistent extraction and ejection in compact configurations. The A2 front sight base (FSB) gas block serves dual purposes—functioning as both the gas block and providing a standard military-spec iron sight. This classic FSB configuration has been proven over decades of military use, offering robust construction, reliable performance, and a dependable backup sight system that requires no batteries or electronics. The A2 FSB maintains the traditional AR-15 aesthetic while providing proven functionality valued by shooters who prefer classic AR-15 designs.
Bolt Carrier Group and Charging Handle
The included complete bolt carrier group is made from high-quality steel, selected for exceptional strength and fatigue resistance under the high-pressure cycling demands of the AR-15 platform. This material provides excellent wear resistance and fatigue life, ensuring dependable operation across thousands of rounds with consistent extraction and ejection performance. Paired with a Mil-Spec charging handle, the complete upper ensures smooth, dependable operation and broad compatibility with aftermarket upgrades and accessories, supporting the versatility engineered into this build kit.
SBR Ready Configuration
This SBR Ready build kit ships without a brace, providing builders with the freedom to tailor your AR-15 to your specifications based on your specific needs and compliance requirements. Builders can select from pistol brace options, stock configurations, or other preferred setups. This approach allows for maximum customization and ensures the build matches the shooter's intended use and regulatory compliance. Know and follow all applicable federal, state, and local laws regarding SBR configurations, and don't install a stock unless compliant with those laws.
Billet Slick Side Upper Receiver
The 6061-T6 billet aluminum upper receiver offers a unique combination of being lightweight yet robust. The slick side design eliminates the forward assist and ejection port cover, creating a clean, minimalist appearance that reduces weight and complexity while maintaining structural integrity. The black anodized finish provides enhanced corrosion resistance and a durable surface. Billet construction allows for tighter tolerances and enhanced machining detail compared to forged receivers, supporting precise fitment and consistent performance. The slick side configuration is particularly appealing to shooters who prioritize weight savings, simplified operation, and modern aesthetics in a versatile platform.
Quad-Rail Handguard and Buffer System
The carbine-length 2-piece quad-rail handguard provides four-sided Picatinny rail coverage at 12, 3, 6, and 9 o'clock positions, allowing for extensive customization and attachments. The 2-piece design allows for straightforward installation around the front sight base while enabling comprehensive accessory mounting capabilities. This quad-rail design allows for mounting of lights, laser devices, vertical grips, and other Picatinny-compatible accessories at multiple positions, allowing shooters to configure the platform to match their specific needs and maximize versatility. The kit includes a mil-spec heavy-duty 6-position buffer tube providing robust construction for reliable operation and compatibility with various brace or stock configurations, supporting the SBR Ready design philosophy and offering the freedom to tailor the build.
Complete Build Package
The kit includes a complete lower parts kit with all necessary components for lower receiver assembly, providing gunsmiths with everything needed to complete the build except the lower receiver itself. This SBR Ready full build kit delivers a comprehensive solution engineered for versatility and reliability, combining streamlined slick side upper design, quality high-strength components, traditional FSB configuration, extensive customization options, and the flexibility to configure the final setup to your specifications for a lightweight yet robust AR-15 platform.
Follow safe handling practices and manufacturer instructions for assembly and use. Ensure compliance with all applicable federal, state, and local laws. SBR Ready configuration ships without a brace. Know and follow all applicable laws for SBR configurations, and don't install a stock unless compliant. This kit is chambered in 5.56 NATO. This kit includes all necessary components to complete the build—lower receiver sold separately.
