Davidson Defense Midnight Marshall 7.5" 5.56 NATO AR-15 Pistol Build Kit, M-Lok, w/ Gauntlet Arms Brace

Midnight Marshall 7.5" 5.56 NATO AR-15 Pistol Build Kit, M-Lok, w/ Gauntlet Arms Brace

The Midnight Marshall is a complete 5.56 NATO pistol build featuring a 7.5-inch Irithyll barrel with a 1:7 twist rate, freefloat M-Lok handguard, and Gauntlet Arms polymer stabilizing brace. This full build kit includes everything except the serialized lower receiver, making it ready to pair with your choice of lower for a compact, maneuverable platform.

Key Features

• 7.5-inch Irithyll barrel in 4150 chrome moly vanadium with phosphate finish
• Freefloat 7-inch M-Lok aluminum handguard for accessory mounting flexibility
• Micro low-profile gas block optimized for pistol-length gas system
• Davidson Defense 5.56 complete bolt carrier group with nitride finish
• AR-15 M4 charging handle and mil-spec receiver end plate
• Gauntlet Arms polymer stabilizing brace for controlled handling
• GI birdcage flash hider with 1/2x28 thread pitch

Perfect For

• Shooters building a compact, short-range 5.56 platform
• Pistol builds requiring a freefloat handguard for consistent performance
• Builders seeking a complete upper and lower components package
• Home defense or recreational shooting configurations

Compact Pistol Caliber Platform

The 7.5-inch barrel length delivers a nimble platform optimized for close-quarters shooting. The 1:7 twist rate stabilizes standard and heavier 5.56 NATO ammunition, giving you flexibility in ammunition selection. Pistol-length gas system tuning reduces felt recoil and keeps the bolt carrier moving efficiently in a shorter package.

Freefloat M-Lok Accessory Ecosystem

The 7-inch aluminum handguard floats independently from the barrel, eliminating contact that can affect shot placement. M-Lok mounting slots run the full length, letting you attach lights, lasers, or vertical grips exactly where you need them. The black anodized finish resists corrosion and blends seamlessly with modern tactical setups.

Davidson Defense Quality Components

This kit pairs a complete bolt carrier group in 9310 alloy steel with nitride finish for durability and smooth cycling. The upper receiver features 7075-T6 aluminum construction with M4 feed ramps for reliable ammunition feeding. Every component meets mil-spec standards for consistent performance.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included. BCG and charging handle are not included in upper build kits, but are included in this full build kit.