This Davidson Defense Safehouse full build kit is engineered for performance and versatility with .300 Blackout in an SBR Ready configuration. Built around a 10.5-inch barrel crafted from 4150 Chrome Moly Vanadium steel with nitride finish and 1:8 twist rate, this kit is designed for reliable cycling with .300 Blackout ammunition. The premium low-profile .750 adjustable gas block located under the handguard allows fine-tuning for various ammunition types and suppressor configurations. The carbine-length quad-rail handguard crafted from aluminum with black finish provides ample accessory mounting options on all four sides. Equipped with a 7075-T6 aluminum upper receiver with anodized finish and M4 feed ramps, complete 9310 alloy steel bolt carrier group with nitride finish, and pistol-length gas system, this SBR Ready and suppressor-ready kit allows customization and adaptation, shipping without a brace for builders who want to configure their preferred final setup.
The 10.5-inch barrel is made from 4150 Chrome Moly Vanadium steel with a nitride finish for exceptional durability and corrosion resistance. The 1:8 twist rate is designed for reliable cycling with .300 Blackout ammunition across 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 pistol-length gas system ensures consistent performance optimized specifically for the 10.5-inch barrel length.
The premium low-profile .750 adjustable gas block is located under the handguard and allows fine-tuning for various ammunition types and suppressor configurations. This adjustability is critical for .300 Blackout platforms that may run both subsonic and supersonic loads, with or without a suppressor. By adjusting 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 ensures reliable cycling across different shooting scenarios, from tactical applications to recreational use. Note: The front sight post is not used as a gas block; the adjustable gas block is located under the handguard.
The carbine-length quad-rail handguard is crafted from aluminum with a black finish and provides ample accessory mounting options on all four sides. Picatinny rails offer extensive mounting points for lights, lasers, grips, pressure switches, and other 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 tactical accessories positioned around the compact platform. The aluminum construction keeps overall weight manageable while providing a rigid mounting platform that maintains zero for precision equipment.
This kit includes a 7075-T6 aluminum upper receiver with an anodized finish and M4 feed ramps that guide cartridges smoothly from magazine to chamber, enhancing feeding reliability across various .300 Blackout magazines and ammunition types. The complete bolt carrier group is crafted from 9310 alloy steel with a nitride finish for exceptional hardness, corrosion resistance, and reliable cycling with .300 Blackout's unique operating characteristics. The nitride finish extends component life and ensures consistent performance even under demanding use.
The SBR Ready configuration is designed for customers who want a build kit without a brace included. This allows you to choose your preferred final setup based on your specific needs and compliance requirements. The kit ships without a brace, giving you full control over how you configure your .300 Blackout pistol build. See configuration options for available setups. This flexibility allows for customization and adaptation to meet your exact shooting requirements, whether you're building a suppressed subsonic setup, a high-velocity hunting pistol, or a tactical platform requiring specific brace or stock configurations.
Always follow safe handling and manufacturer instructions.
Ensure compliance with all applicable federal, state, and local laws.
SBR Ready configuration ships without a brace. Know and follow all applicable laws, and don't install a stock unless compliant.
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 before assembly.
Caliber: .300 Blackout
Barrel Length: 10.5-inch
Barrel Material: 4150 CrMoV
Barrel Thread Pitch: 5/8x24
Barrel Twist Rate: 1:8
Barrel Gas System Length: Pistol Length
Barrel Finish: Nitride
Barrel Profile: Government, M4 Extension
Front Sight Base: A2 F-Marked Base
Gas Block Size: 0.750
Handguard Compatibility: Works with Carbine Length Drop In Handguard
Handguard Material: Aluminum
Handguard Color: Black
Handguard Style: Quad-Rail
Upper Receiver Material: 7075 T6 Aluminum
Upper Receiver Finish: Anodized
Upper Receiver: AR-15 Upper Receiver, M4 Feed ramps, 7075 T6 Aluminum, Anodized
Barrel: 10.5-inch .300 BLK Front Sight Base Barrel, Pistol-Length Gas, 1:8T
Charging Handle: AR-15 M4 Charging Handle Mil-Spec Quality
Gas Block: Premium Low Profile .750 Adjustable Gas Block
Gas Block Finish: Nitride
Gas Block Profile: Low-Profile
Bolt Carrier Material: 9310 Alloy Steel
Bolt Carrier Finish: Nitride
Bolt Carrier: Complete Bolt Carrier Group Made In The USA
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