Details
Davidson Defense Homefront 10.5" .300 Blackout AR-15 Pistol Full Build Kit | SBA3 Adjustable Brace | 1:8 Twist | Quad Rail Handguard | Adjustable Gas Block
This Davidson Defense Homefront full build kit delivers a comprehensive .300 Blackout pistol platform tailored for precision and performance. Built around a 10.5-inch .300 Blackout front sight base barrel constructed from 4150 Chrome Moly Vanadium steel with nitride finish and 1:8 twist rate, this kit is optimized for reliable cycling with subsonic and supersonic ammunition. The carbine-length quad-rail handguard crafted from aluminum offers extensive attachment points for accessories on all four sides. Equipped with a 7075-T6 forged aluminum upper receiver that's anodized with internal dry film lube, premium low-profile adjustable gas block located under the handguard, AR-15 M4 charging handle, complete 9310 alloy steel bolt carrier group, carbine buffer tube with internal dry film lube, and the SB Tactical SBA3 adjustable brace, this suppressor-ready pistol is fully optimized for custom configurations and offers the adjustability and modularity discerning builders demand.
Key Features
- 10.5" .300 Blackout Front Sight Base Barrel – 4150 CrMoV steel with nitride finish and 1:8 twist rate
- Premium Low-Profile Adjustable Gas Block – Tuning capability for suppressed and unsuppressed shooting (located under handguard)
- Front Sight Base – Integrated aiming solution (not used as gas block; gas block is located under handguard)
- Carbine-Length Quad-Rail Handguard – Aluminum construction with extensive mounting options on all four sides
- 7075-T6 Forged Aluminum Upper Receiver – Anodized finish with internal dry film lube
- Carbine Buffer Tube with Internal Dry Film Lube – Enhanced durability and smooth operation
- Complete 9310 Alloy Steel Bolt Carrier Group – Reliable cycling for .300 Blackout applications
- AR-15 M4 Charging Handle – Smooth operation included
- SB Tactical SBA3 Adjustable Brace – Five-position adjustability for customized fit
- Suppressor-Ready Design – Optimized for suppressor attachments
Perfect For
- Gunsmiths building custom .300 Blackout pistol configurations with adjustable brace
- Shooters who need adjustable gas for suppressed and unsuppressed versatility
- Tactical applications requiring maximum quad-rail accessory mounting flexibility
- Those seeking a complete build kit with SB Tactical's proven SBA3 brace design
4150 CrMoV Barrel with Front Sight Base
The 10.5-inch barrel is constructed from 4150 Chrome Moly Vanadium steel with a nitride finish for exceptional durability and corrosion resistance. The 1:8 twist rate is optimized for .300 Blackout ammunition, providing reliable stabilization for both subsonic loads (typically 190-220 grains) and supersonic loads (110-125 grains). This versatility makes the barrel equally capable for suppressed subsonic shooting with minimal sound signature and high-velocity supersonic applications for maximum energy delivery. The front sight base provides an integrated aiming solution that requires no batteries and remains functional in all conditions, offering backup sighting capability alongside optics.
Premium Low-Profile Adjustable Gas Block
The premium low-profile adjustable gas block is located under the handguard and allows precise tuning for suppressed and unsuppressed shooting with various ammunition types. This adjustability is critical for .300 Blackout platforms that may run both subsonic and supersonic loads, with or without a suppressor. By tuning gas flow, you can ensure proper cycling with heavy subsonic ammunition when suppressed, then adjust for reliable operation with supersonic loads or unsuppressed shooting. This suppressor-ready design makes the pistol fully optimized for custom configurations across diverse shooting applications. Note: The front sight base is not used as a gas block; the adjustable gas block is located under the handguard.
Enhanced Durability with Dry Film Lube
Both the upper receiver and carbine buffer tube feature internal dry film lube for enhanced durability and smooth operation. This factory-applied lubrication reduces friction between moving parts, extends component life, and ensures reliable function even in adverse conditions. The dry film lube creates a low-friction surface that resists wear and corrosion while maintaining proper function without attracting dirt and debris like wet lubricants. The upper receiver is forged from 7075-T6 aluminum and anodized for additional protection, creating a robust foundation for precision builds.
Carbine-Length Quad-Rail Handguard
The carbine-length quad-rail handguard is crafted from aluminum and offers ample attachment points for accessories on all four sides. Picatinny rails provide extensive mounting options for lights, lasers, foregrips, pressure switches, and other tactical accessories exactly where you need them. This maximum mounting flexibility is particularly valuable for suppressor-host configurations, night vision setups, or any build requiring multiple accessories positioned around the compact pistol platform. The aluminum construction keeps overall weight manageable while providing a rigid mounting platform that maintains zero for precision equipment.
SB Tactical SBA3 Adjustable Brace
The SB Tactical SBA3 brace features five-position adjustability along the carbine buffer tube, allowing you to customize the length for optimal fit and handling across different shooting positions. The split-tube design with adjustable nylon straps provides improved stability during use while maintaining the lightweight profile essential to pistol configurations. The SBA3's proven design has become an industry standard for AR pistol builds, offering shooters a reliable platform for controlled shooting and improved accuracy. The adjustable configuration accommodates shooters of different sizes and allows for quick length changes based on clothing layers or shooting scenarios.
Complete Components for Custom Builds
This kit includes a complete bolt carrier group made from 9310 alloy steel for reliable cycling with .300 Blackout's unique operating characteristics. The AR-15 M4 charging handle provides smooth operation for quick manipulation during shooting sequences. All components are designed to work together seamlessly, creating a modular platform that's fully optimized for custom configurations, whether you're building a suppressed subsonic setup, a high-velocity hunting pistol, or a tactical application requiring maximum versatility across ammunition types and shooting conditions.
Always follow safe handling and manufacturer instructions.
Ensure compliance with all applicable federal, state, and local laws.
If using a suppressor, verify proper gas system adjustment for reliable cycling with your specific ammunition and suppressor combination.
Confirm fitment and compatibility with your lower receiver and brace usage regulations before assembly.
