Davidson Defense Horus w/Gauntlet Arms Brace 5.5-inch 1:16 10MM AR-15 Freefloat Tubular M-Lok Handguard Pistol Full Build Kit

Davidson Defense Horus AR-15 Pistol Full Build Kit - 5.5-inch, 10mm, Tubular M-Lok Freefloat Handguard, Gauntlet Arms Brace

The Davidson Defense Horus is a 10mm AR-15 pistol full build kit built around a Vertex Enhanced Pistol Caliber billet 6061-T6 aluminum upper receiver with an anodized finish. The kit includes a 5.5-inch direct blowback barrel in 4150 chrome moly vanadium steel with a nitride finish, a 1:16 twist rate, and a 5/8x24 thread pitch, a slim tubular M-Lok handguard in black aluminum with a 1.77-inch internal diameter for suppressor compatibility, a Pershing 5/8x24 steel flash can, a nitride-finished 9310 alloy steel 10mm and .40 S&W bolt carrier group, a Mil-Spec M4 charging handle, a Gauntlet Arms black nylon reinforced polymer stabilizing brace, a heavy-duty pistol buffer tube, an 8 oz buffer, a recoil spring, an end plate, and a castle nut. Lower receiver not included.

Key Features

• Vertex Enhanced Pistol Caliber billet 6061-T6 aluminum upper receiver, anodized finish
• 5.5-inch direct blowback barrel, 4150 chrome moly vanadium, nitride finish
• 10mm and .40 S&W compatible
• 1:16 twist rate
• 5/8x24 thread pitch
• Direct blowback operating system
• Slim tubular M-Lok handguard, aluminum, black, 1.77-inch internal diameter, suppressor compatible
• Pershing 5/8x24 steel flash can
• 9310 alloy steel 10mm and .40 S&W bolt carrier group, nitride finish
• Mil-Spec M4 charging handle
• Gauntlet Arms black nylon reinforced polymer stabilizing brace
• Heavy-duty pistol buffer tube
• 8 oz buffer
• Recoil spring
• End plate
• Castle nut
• Lower receiver not included

Perfect For

• AR-15 pistol builders sourcing a complete 10mm full build kit with the Gauntlet Arms brace in a compact suppressor-ready tubular handguard configuration
• Shooters pairing this kit with an existing AR-15 lower receiver compatible with 10mm or .40 S&W
• Builders looking for a compact 10mm pistol build kit with a suppressor-compatible tubular handguard profile

Barrel and Muzzle Device

The barrel is a 5.5-inch direct blowback unit in 4150 chrome moly vanadium steel with a nitride finish, chambered in 10mm with a 1:16 twist rate and a 5/8x24 thread pitch. A Pershing 5/8x24 steel flash can covers the muzzle end of this build kit.

Upper Receiver and Handguard

The Vertex Enhanced Pistol Caliber billet upper receiver is 6061-T6 aluminum with an anodized finish, forming the structural core of the upper assembly. The slim tubular M-Lok handguard is black aluminum with a 1.77-inch internal diameter, surrounding the barrel without contact, providing M-Lok mounting positions for compatible accessories and clearance for suppressor use.

Bolt Carrier Group and Charging Handle

The included bolt carrier group is a 10mm and .40 S&W specific unit in 9310 alloy steel with a nitride finish. The BCG and Mil-Spec M4 charging handle work together to cycle the action and complete the upper side component set.

Brace and Buffer System

The Gauntlet Arms black nylon reinforced polymer stabilizing brace is included with a heavy-duty pistol buffer tube. The buffer system consists of an 8 oz buffer and a recoil spring. An end plate and castle nut complete the rear hardware included with this full build kit.

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