Davidson Defense Solar Burst w/Gauntlet Arms Brace 6-inch 1:10 9MM AR-9 M-Lok Pistol Full Build Kit

Solar Burst 6-Inch 9mm AR-9 M-LOK Pistol Full Build Kit with Gauntlet Arms Brace

The Solar Burst Full Build Kit 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, charging handle, and Gauntlet Arms polymer stabilizing brace. Lower receiver is not included.

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
• Complete mil-spec AR-15 Lower Parts Kit included
• Fixed, non-adjustable polymer stabilizing brace included
• Lower receiver is not 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, so a gas tube and gas block are not required. 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.

Lower Parts Kit and Buffer System

A complete mil-spec AR-15 Lower Parts Kit is included, with a black mil-spec A2 pistol grip and the full fire control group. The buffer system pairs an AR-15 9mm carbine buffer built for 9mm AR-15 PCC recoil systems with a USA-made standard AR-15 carbine recoil spring, cycling inside a fixed, non-adjustable heavy-duty pistol buffer tube in black.

Brace

The included polymer stabilizing brace is a fixed, non-adjustable design in black with a skeletonized profile, built for the pistol buffer tube used in this kit and featuring an integrated sling loop.

Follow all manufacturer instructions and safe handling practices.

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

Lower receiver is not included.