Davidson Defense Davidson Defense Wiscasset AR-15 Upper, 16" 5.56 NATO 1:7 Barrel, 15" M-LOK Handguard

Davidson Defense Wiscasset 5.56 NATO Upper

The. Wiscasset upper delivers reliable mid-range performance with a 16-inch 4150 CrMoV nitride barrel and 1:7 twist rate built for accuracy with modern ammunition. The 6061-T6 billet aluminum receiver with. Type III hard coat anodize provides durability, while the 15-inch M-Lok handguard gives you plenty of real estate for mounting accessories. This upper comes complete with a carbine length gas tube, micro low-profile gas block, and standard A2 flash hider.

Key Features

• 16-inch 4150 CrMoV nitride barrel with 1:7 twist rate for modern 5.56 ammunition
• 6061-T6 billet aluminum upper receiver with Type III hard coat anodize finish
• 15-inch M-Lok handguard for accessory mounting flexibility
• Micro low-profile gas block and carbine length stainless steel gas tube included
• 1/2x28 thread pitch compatible with standard muzzle devices
• Standard A2 flash hider and crush washer included

Perfect For

• Builders seeking a reliable mid-range upper without premium pricing
• Shooters who want a durable billet receiver with solid barrel quality
• Those building a general purpose rifle for range use or home defense
• Riflemen who prefer the 1:7 twist for heavier or modern ammunition loads

Quality Construction and Compatibility

The. Wiscasset upper uses a medium profile 4150 CrMoV barrel finished in nitride, a process that hardens the steel and improves corrosion resistance. The billet aluminum receiver is CNC machined from 6061-T6 stock and finished with. Type III hard coat anodize for consistent protection. The 15-inch M-Lok handguard provides modern mounting options without adding unnecessary weight, and the micro low-profile gas block keeps your sight picture clear while managing recoil impulse effectively.

What You Need to Know

BCG and charging handle are not included. This is an upper assembly only and requires a lower receiver to function as a complete rifle. The 1:7 twist rate pairs well with standard to heavier 5.56 loads, making this upper adaptable to different shooting styles. The included carbine length gas system is a proven platform that balances reliability and recoil management for most shooters.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. BCG and charging handle are not included.