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  5. Davidson Defense Warden w/SBA5 Brace 10.5-inch Carbine-Gas 1:7 5.56 NATO AR-15 Freefloat Keymod Handguard Pistol Full Build Kit

Davidson Defense Warden w/SBA5 Brace 10.5-inch Carbine-Gas 1:7 5.56 NATO AR-15 Freefloat Keymod Handguard Pistol Full Build Kit

Part Number: PI-PK-556-63997-SBA5
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On sale $394.99 $294.99
Retail Price:$394.99
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Details

Davidson Defense Warden w/SBA5 Brace 10.5" AR-15 Complete Build Kit - 5.56 NATO | 4150 CrMoV Barrel | Keymod Free Float Handguard | Complete BCG | SB Tactical SBA5 Adjustable Brace

The Davidson Defense Warden w/SBA5 Brace 10.5-inch Carbine Complete Build Kit is engineered for reliability and performance in the AR-15 platform chambered for 5.56 NATO. Featuring 10.5-inch barrel chambered in 5.56 NATO with 1:7 twist rate and phosphate finish for optimal performance, 4150 CrMoV steel barrel construction with government profile for durability and heat resistance, carbine-length gas system for efficient cycling, 7075-T6 forged aluminum upper receiver with anodized finish for superior strength and durability, sleek 6061-T6 aluminum Keymod free float handguard for versatile accessory mounting, complete 9310 alloy steel bolt carrier group with nitride finish for corrosion resistance, SB Tactical SBA5 pistol stabilizing brace for added stability and improved handling, micro low-profile gas block for efficient gas regulation, mil-spec heavy-duty 6-position buffer tube for robust construction, AR-15 mil-spec charging handle for reliable operation, GI A2 birdcage flash hider for reduced flash signature and muzzle rise—perfect for custom AR-15 pistol builds, home defense configurations, tactical applications, and gunsmiths seeking comprehensive 5.56 NATO build kits with latest-generation brace technology.

Key Features:

  • 10.5" Barrel: Compact length with 1:7 twist rate
  • 5.56 NATO Chamber: Proven military specification chambering
  • 4150 CrMoV Steel: Premium barrel material for durability and heat resistance
  • Government Profile Barrel: Proven military specification design
  • Phosphate Finish: Battle-tested coating for rigorous use and corrosion resistance
  • Carbine-Length Gas System: Optimal cycling for 10.5" barrel configuration
  • 1:7 Twist Rate: Excellent stabilization for heavy bullets and optimal performance
  • 7075-T6 Upper Receiver: Forged aluminum with anodized finish
  • Keymod Free Float Handguard: Sleek 6061-T6 aluminum for accessory mounting
  • Complete 9310 Bolt Carrier Group: Nitride finish for corrosion resistance
  • AR-15 Mil-Spec Charging Handle: Reliable charging operation
  • Micro Low-Profile Gas Block: Efficient gas regulation with clean aesthetic
  • SB Tactical SBA5 Pistol Stabilizing Brace: Latest-generation adjustable brace with five positions
  • Mil-Spec 6-Position Buffer Tube: Heavy-duty construction for robust brace mounting
  • GI A2 Birdcage Flash Hider: Reduced flash signature and muzzle rise
  • Complete Build Kit: Everything needed for custom AR-15 pistol assembly

Perfect For:

  • Custom AR-15 pistol builds with 5.56 NATO reliability
  • Compact home defense and personal protection setups
  • Tactical training and close-quarters applications
  • Gunsmiths seeking comprehensive build kits with latest-generation braces
  • Builders prioritizing stability and improved handling
  • AR-15 pistol projects requiring battle-tested performance

5.56 NATO Chamber with Premium 4150 CrMoV Barrel: This kit features a 10.5-inch barrel specifically chambered in 5.56 NATO, providing proven military specification performance and reliability. The 5.56 NATO chambering ensures compatibility with both 5.56 NATO and .223 Remington ammunition, offering flexibility for various shooting applications. The 1:7 twist rate is optimized for heavier bullets, sporting excellent stabilization with bullet weights ranging from 55 to 77 grains, making it particularly effective with modern tactical ammunition including M855 and heavier match-grade projectiles. Made from 4150 CrMoV steel—a chromium-molybdenum-vanadium alloy renowned for superior durability and heat resistance—the government profile barrel balances weight distribution with durability for long-term reliability. The phosphate finish provides battle-tested protection against corrosion and wear, offering a proven coating that has served military applications reliably for decades while enhancing overall barrel longevity—perfect for builders seeking a compact, reliable platform with proven performance characteristics.

Premium Upper Assembly with Keymod Free Float Handguard: The upper receiver is crafted from 7075-T6 aluminum—the same premium material specification used in military M4/M16 upper receivers—providing superior strength compared to 6061 aluminum alternatives. The upper is anodized for durability, enhancing protection against corrosion and wear while providing a consistent, attractive appearance. Paired with a sleek 6061-T6 aluminum Keymod free float handguard, the upper assembly provides ample mounting space for tactical accessories while maintaining a lightweight profile for comfortable handling. The Keymod attachment system offers secure mounting points for lights, laser sights, vertical grips, and hand stops, allowing for versatile customization options. The free float design eliminates barrel contact, improving accuracy potential by preventing pressure points that can affect barrel harmonics during firing. The carbine gas system ensures efficient cycling with a micro low-profile gas block that provides clean gas regulation while maintaining a modern aesthetic that fits neatly under the handguard.

Complete 9310 Bolt Carrier Group and Optimized Gas System: The kit comes with a complete bolt carrier group made from 9310 alloy steel, eliminating the need to source this critical component separately. 9310 steel is a high-strength nickel-chromium-molybdenum alloy specifically chosen for bolt applications due to its superior toughness, fatigue resistance, and ability to withstand the high-pressure environment of the bolt. The BCG features a nitride finish for corrosion resistance, providing enhanced durability and reduced friction for smooth, reliable cycling and extended service life. Paired with an AR-15 mil-spec charging handle for reliable operation, the upper assembly provides smooth, dependable charging and clearing functionality. The carbine-length gas system is specifically optimized for the 10.5-inch barrel length to provide the correct dwell time for consistent performance with standard 5.56 NATO ammunition loads. The micro low-profile gas block ensures efficient cycling while maintaining a clean, streamlined appearance.

SB Tactical SBA5 Pistol Stabilizing Brace with Mil-Spec Buffer System: Included is an SB Tactical SBA5 pistol stabilizing brace for added stability and improved shooter control. The SBA5 represents the latest generation in pistol brace technology, featuring five positions of adjustability for customized length of pull, allowing shooters of different sizes to achieve optimal fit and comfort. The nylon reinforced polymer construction provides durability while maintaining reduced weight compared to heavier materials. The SBA5 improves upon previous generations with refined ergonomics, enhanced adjustment mechanism, and superior build quality—making it ideal for custom AR-15 pistol builds where stabilization and functionality matter. Paired with a mil-spec heavy-duty 6-position buffer tube designed for robust brace mounting and long-term reliability, the buffer system provides proper cycling characteristics for reliable operation. The kit includes a GI A2 birdcage flash hider that reduces flash signature and muzzle rise for improved shooting experience in low-light conditions and better control during rapid fire. This kit is ideal for gunsmiths seeking a comprehensive 5.56 NATO build kit—combining proven military chambering, premium 4150 CrMoV barrel with government profile and phosphate finish, sleek Keymod free float handguard, complete 9310 BCG with nitride finish, latest-generation SBA5 brace for enhanced stability, and robust mil-spec buffer system in a complete package ready for custom assembly.

Specifications

Caliber: 5.56x45mm NATO

Barrel Length: 10.5-inch

Barrel Material: 4150 CrMoV

Barrel Thread Pitch: 1/2x28

Barrel Finish: Phosphate

Barrel Profile: Government

Barrel Twist Rate: 1:7

Barrel Gas System Length: Carbine

Upper Receiver Material: 7075-T6 Aluminum

Upper Receiver Finish: Anodized

Upper Receiver: AR-15 Upper Receiver, M4 Feed ramps

Handguard Material: 6061-T6 Aluminum

Handguard Color: Black

Handguard Style: KeyMod

Gas Block: Micro Low-Profile Gas Block

Gas Block Size: 0.750

Bolt Carrier Material: 9310 Alloy Steel

Bolt Carrier Finish: Nitride

Bolt Carrier: AR-15 5.56/.223/.300/.350 Complete Bolt Carrier Group

Pistol Brace: SB Tactical SBA5 Pistol Stabilizing Brace

Muzzle Device: GI Birdcage Flash Hider

Muzzle Device Details: Reduces flash signature and muzzle rise

Muzzle Thread Pitch: 1/2x28

Charging Handle: AR-15 M4 Charging Handle, Mil-Spec Quality

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