Davidson Defense True Blue 7.5" 5.56 NATO AR-15 Pistol Build Kit, M-Lok Handguard, 1:7, w/ SBA5 Brace

True Blue 7.5" 5.56 NATO AR-15 Pistol Build Kit, M-Lok Handguard, 1:7, w/ SBA5 Brace

This is a complete AR-15 pistol build kit designed for shooters who want a compact, maneuverable platform. The True Blue configuration pairs a 7.5-inch barrel with a pistol-length gas system, a free-float M-LOK handguard, and an SB Tactical SBA5 stabilizing brace. The kit includes everything except the lower receiver, which is the serialized component you'll need to source separately through an FFL.

Key Features

• 7.5-inch 5.56 NATO barrel with 1:7 twist rate and phosphate finish
• Pistol-length gas system with micro low-profile gas block
• Free-float M-LOK handguard for rail mounting flexibility
• SB Tactical SBA5 stabilizing brace in black nylon polymer
• Complete bolt carrier group, charging handle, and all buffer system components
• AR-15 upper receiver with M4 feed ramps, 7075-T6 aluminum construction

Perfect For

• Shooters building a compact, maneuverable AR-15 pistol platform
• Users who want a short-barrel configuration with proven reliability
• Builders seeking a complete kit that eliminates compatibility guesswork
• Those prioritizing customization through the M-LOK rail ecosystem

SBA5 Stabilizing Brace Configuration

The SBA5 brace ships as part of this kit and is designed for shooters who want a stabilized pistol platform without a traditional stock. The brace attaches to the buffer tube and provides a stable shooting platform when shouldered. This configuration allows you to customize your final setup based on your shooting preferences and local compliance requirements. The brace is removable, giving you flexibility to swap components if your needs change.

Compact Pistol-Length Gas System

This build uses a pistol-length gas system paired with a 7.5-inch barrel, creating a short overall profile ideal for close-quarters handling. The micro low-profile gas block keeps the top of the handguard clear for optics and accessories. The 1:7 twist rate stabilizes 5.56 NATO rounds across a wide range of bullet weights, from 55-grain to heavier match-grade ammunition.

Free-Float M-LOK Handguard Design

The free-float handguard eliminates contact between the barrel and rail system, which can improve consistency by removing variables that affect barrel harmonics. The M-LOK mounting system provides a clean, lightweight interface for attaching tactical accessories, lights, and vertical grips without adding unnecessary weight to the platform.

Included Components

This full build kit includes the upper receiver, barrel, handguard, bolt carrier group, charging handle, SBA5 brace, buffer tube, buffer spring, recoil spring, castle nut, and end plate. Lower receiver not included.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included.