Davidson Defense High Orbit 10.5-inch Pistol-Gas 1:8 .338 ARC AR-15 Freefloat M-Lok Handguard Pistol Complete Upper Build

Davidson Defense High Orbit 10.5 Inch Pistol Gas 338 ARC AR-15 Complete Upper

This complete upper includes a 10.5 inch 338 ARC barrel, 10 inch Trinity Force MX10 M-Lok freefloat handguard, complete bolt carrier group with QPQ nitride finish, and charging handle. The upper receiver is forged 7075-T6 aluminum with anodized finish and M4 feed ramps. The barrel is Bear Creek 4150 CrMoV steel with phosphate finish, HBAR profile, and 1 in 8 twist rate. The gas system includes a micro low profile gas block and stainless pistol length gas tube.

Key Features

• 10.5 inch Bear Creek 4150 CrMoV steel HBAR barrel with phosphate finish
• 1 in 8 twist rate chambered in 338 ARC
• Pistol length gas system with micro low profile gas block
• Stainless pistol length gas tube
• 7075-T6 forged aluminum upper receiver with anodized finish and M4 feed ramps
• 10 inch Trinity Force MX10 M-Lok freefloat handguard
• 5/8x24 threaded barrel
• Complete 8620 alloy steel bolt carrier group with QPQ nitride finish
• Charging handle included

Perfect For

• Builders seeking a ready to install 338 ARC upper
• Pistol or SBR projects requiring shorter barrel lengths
• Shooters prioritizing compact dimensions with 338 ARC ballistics
• Home defense or vehicle applications

Complete Upper Assembly

This upper includes all components needed for immediate installation on a compatible AR-15 lower receiver. The bolt carrier group and charging handle are included, eliminating the need for additional upper components.

Compact 338 ARC Configuration

The 10.5 inch Bear Creek HBAR profile barrel is chambered in 338 ARC with a 1 in 8 twist rate for projectile stabilization. The phosphate finish offers corrosion resistance and surface hardness. The pistol gas system is matched to the barrel length for reliable cycling. The micro low profile gas block sits under the handguard for a clean profile. The stainless pistol length gas tube connects the gas block to the upper receiver. The barrel features 5/8x24 threads for muzzle device compatibility.

Trinity Force MX10 Freefloat Handguard

The 10 inch Trinity Force MX10 handguard features M-Lok attachment slots for modular accessory placement. The freefloat design isolates the barrel from handguard contact for improved accuracy and weight distribution. The handguard provides a stable platform for optics and accessories.

QPQ Nitride Bolt Carrier Group

The 8620 alloy steel bolt carrier group features QPQ nitride finish for enhanced corrosion resistance and reduced friction. The BCG is paired with a charging handle for complete upper functionality. The upper receiver features M4 feed ramps for reliable feeding.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws.