Davidson Defense Full House 10.5" 5.56 AR-15 Pistol Kit, Drop-In Trigger Ready, KeyMod, w/ SBA5 Brace

Full House 10.5" 5.56 AR-15 Pistol Kit, Drop-In Trigger Ready, KeyMod, w/ SBA5 Brace

This is a complete upper and lower assembly kit for building a compact 5.56 AR-15 pistol. It includes everything except the serialized lower receiver, with nitride-finished components throughout and a drop-in trigger ready design for fast customization.

Key Features

• 10.5-inch nitride barrel with 1:8 twist rate and carbine length gas system
• SB Tactical SBA5 pistol stabilizing brace for wrist support and control
• KeyMod handguard with low-profile gas block for accessory mounting
• Drop-in trigger ready lower parts kit for quick customization
• Mil-spec buffer tube, buffer, and recoil spring included
• USA-made bolt carrier group with nitride finish
• M4 feed ramps and forward assist on upper receiver

Perfect For

• Shooters building a compact 5.56 pistol configuration
• Those wanting a complete kit with minimal additional components needed
• Builders who prefer KeyMod accessory compatibility
• Users planning to add their own trigger or optics later

Full House Configuration

This kit ships with all the components needed to complete a lower receiver and mate it to the finished upper assembly. The SBA5 brace provides a stabilizing platform for one-handed or two-handed shooting. The nitride finish on the barrel and bolt carrier offers corrosion resistance without the cost of premium coatings. The 10.5-inch barrel balances velocity with a compact profile suitable for close-quarters work or home defense applications.

Drop-In Trigger Ready Design

The lower parts kit is configured for easy trigger upgrades. The standard trigger included functions reliably, but the design accepts most aftermarket drop-in triggers without modification. This lets you customize the trigger pull weight and reset speed to your preference without gunsmithing.

KeyMod Accessory Ecosystem

The 10-inch KeyMod handguard integrates with the KeyMod mounting standard, letting you attach lights, grips, and other accessories directly to the rail. The low-profile gas block sits underneath without interfering with top-mounted optics or charging handle operation.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included. Do not install a stock unless compliant with applicable laws.