Davidson Defense Solar Burst 6-inch 1:10 9MM AR-9 Freefloat M-Lok Handguard Pistol Complete Upper Build

Solar Burst 6-Inch 9mm AR-9 Free-Float M-LOK Handguard Pistol Complete Upper

The Solar Burst Complete Upper is built around a 6-inch 9mm direct blowback barrel with a 6061 aluminum billet upper receiver, a 4-inch free-float M-LOK handguard, and a complete 9mm bolt carrier group and charging handle.

Key Features

• 6-inch 9mm barrel, 4150 CrMoV steel, 1:10 twist, Nitride finish
• Direct blowback operating system
• 6061 aluminum billet pistol caliber AR-15 upper receiver, black
• 4-inch free-float M-LOK handguard with full-length Picatinny top rail
• Steel Flash Can Design 11, Rev 2 Pattern 2, 9mm compatible, Black Oxide finish, with 1/2-inch black crush washer
• 8620 alloy steel 9mm Nitride BCG, compatible with Glock and Colt pattern magazines, and mil-spec quality M4 charging handle included

Barrel and Operating System

The 6-inch barrel is machined from 4150 chrome moly vanadium steel with a Nitride finish and a 1:10 twist rate suited to 9mm. This build runs a direct blowback operating system rather than a gas-driven cycle. The muzzle carries the Steel Flash Can Design 11, Rev 2 Pattern 2, a 9mm-compatible flash can with a 1-inch outer diameter and a Black Oxide finish, mounted on 1/2x28 threads and secured with the included 1/2-inch black crush washer.

Upper Receiver and Handguard

The upper receiver is a 6061 aluminum billet unit built specifically for the pistol caliber AR-15 platform, finished in black. It's paired with a 4-inch free-float M-LOK handguard featuring a full-length Picatinny top rail, built without anti-rotation tabs for a slim, uninterrupted profile along the short barrel.

Bolt Carrier Group and Charging Handle

The included bolt carrier group is machined from 8620 alloy steel with a Nitride finish and an external extractor, built for compatibility with Glock and Colt pattern magazines. A mil-spec quality AR-15 M4 charging handle is included alongside it.

Follow all manufacturer instructions and safe handling practices.

Ensure compliance with all applicable federal, state, and local laws.