Davidson Defense Pharos 7.5-inch 1:16 10MM AR-15 Freefloat ML Handguard Pistol Complete Upper Build

Pharos 7.5-inch 10mm Auto AR-15 Complete Upper

The Pharos is built around a 7.5-inch 10mm Auto barrel with an M4 contour, paired with a 6061 aluminum pistol-caliber AR-15 billet upper receiver. It pairs a 7-inch tubular aluminum free-float M-LOK handguard with an A2-style birdcage flash hider at the muzzle. It runs on a blowback operating system. A PCC bolt assembly and Mil-Spec charging handle round out the upper, giving the buyer everything needed on the upper side.

Key Features

• 7.5-inch 10mm Auto barrel, 1:16 twist, M4 contour
• Blowback operating system
• 6061 aluminum pistol-caliber AR-15 billet upper receiver
• 7-inch tubular aluminum free-float M-LOK handguard, Suppressor-Ready design
• A2-style birdcage flash hider, 10mm/.40 S&W compatible
• Complete PCC bolt assembly and Mil-Spec charging handle included

Barrel and Muzzle Device

The barrel runs 7.5 inches long, chambered in 10mm Auto and built from 4150 chrome moly vanadium steel with a Parkerized finish and M4 contour. It carries a 1:16 twist rate and a 9/16x24 muzzle thread. At the muzzle sits an A2-style birdcage flash hider rated for both 10mm and .40 S&W, threaded to match the barrel's 9/16x24 pattern and secured with the included 5/8-inch black crush washer.

Upper Receiver and Handguard

The upper receiver is a 6061 aluminum billet unit built for the pistol-caliber AR-15 platform. Over the barrel sits a 7-inch tubular handguard machined from aluminum with a 1.77-inch internal diameter, free-floated for a clean, uninterrupted forend. It carries a Suppressor-Ready design as a feature of this specific handguard, using an M-LOK attachment system along its length.

Bolt Assembly and Charging Handle

The bolt assembly is a PCC AR unit built for compatibility with both 10mm Auto and .40 S&W. A Mil-Spec AR-15 M4 charging handle rounds out the upper's operating components.

Follow all manufacturer instructions and safe handling practices.

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

Verify suppressor and mounting-system compatibility before use.