Davidson Defense Aegis Lightweight 16.5" AR-15 5.56 Build Kit, 15" M-LOK, Plan B Scorch Flash Hider

Aegis Lightweight 16.5-inch Mid-Gas 5.56 NATO AR-15 Full Build Kit with Plan B Scorch

This is a complete rifle build kit designed around precision and reliability. You get a 16.5-inch barrel with a 1:7 twist rate paired with a mid-length gas system, a 15-inch freefloat M-Lok handguard, and a Plan B Scorch 3-prong flash hider. The kit includes everything except the lower receiver, so you're looking at a straightforward build with quality components across the board.

Key Features

• Aegis Satellite 16.5-inch barrel in 5.56 NATO with QPQ nitride finish and medium profile
• 1:7 twist rate optimized for heavier ammunition and consistent accuracy
• Mid-length gas system for balanced recoil impulse and reliability
• 15-inch freefloat M-Lok handguard with Type III hard coat anodized finish
• Plan B Scorch 3-prong flash hider with precision-machined design
• Complete bolt carrier group in 9310 alloy steel with nitride finish
• Micro low-profile 0.750 gas block for clean rail integration
• Mil-spec charging handle and 6-position buffer tube
• Adjustable carbine stock in nylon reinforced polymer

Perfect For

• Builders wanting a balanced mid-range AR-15 configuration
• Shooters prioritizing accuracy with heavier 5.56 ammunition
• Users who value the modular suppressor mounting ecosystem
• Precision-focused builds without excessive length

Plan B Scorch Muzzle Device Ecosystem

The. Plan B Scorch 3-prong flash hider is built on the. Plan B modular mounting system, which means you can swap in compatible suppressors and accessories without changing the muzzle device. The precision-machined prongs reduce flash signature while maintaining a clean aesthetic. Internal flash-cutter threads protect the device from carbon buildup. This design integrates seamlessly with the 15-inch M-Lok handguard and keeps your setup flexible for future upgrades.

Barrel and Gas System Balance

The 16.5-inch. Aegis. Satellite barrel delivers a solid balance between velocity and handling. The 1:7 twist is stable across the full spectrum of 5.56 ammunition, from 55-grain rounds to heavier loads. Mid-length gas tuning keeps recoil manageable and cycling consistent without over-gassing the system. The micro low-profile gas block sits low enough to coexist cleanly with the freefloat handguard, preserving the rail space you need for optics and accessories.

Freefloat Handguard and Accuracy

The 15-inch freefloat M-Lok handguard isolates the barrel from external pressure, which means your barrel vibrates naturally without interference from the furniture. This design principle reduces shot-to-shot variance and improves group consistency. M-Lok slots give you straightforward mounting options for grips, lights, and other accessories without rail clutter.

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