Davidson Defense High Orbit 10.5-inch Pistol-Gas 1:8 .338 ARC AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit, SBR Ready

High Orbit 10.5 Inch Pistol Gas 338 ARC AR-15 SBR Ready Full Build Kit with M-Lok Handguard

This SBR Ready full build kit provides all components needed to complete a 338 ARC AR-15 build except the lower receiver. It includes a 10.5 inch Bear Creek HBAR barrel with pistol gas system, 10 inch Trinity Force MX10 M-Lok freefloat handguard, complete 6.5 Grendel Type II bolt carrier group with QPQ nitride finish, charging handle, buffer system, and lower parts kit. The upper receiver is Davidson Defense 7075-T6 aluminum with anodized finish. The barrel is 4150 CrMoV steel with parkerized finish and 1 in 8 twist rate.

Key Features

• 10.5 inch Bear Creek 4150 CrMoV steel HBAR barrel with parkerized finish
• 1 in 8 twist rate chambered in 338 ARC
• Pistol length gas system with micro low profile gas block
• Davidson Defense 7075-T6 aluminum upper receiver with anodized finish
• 10 inch Trinity Force MX10 M-Lok freefloat handguard
• 5/8x24 threaded barrel with GI birdcage flash hider
• Complete 6.5 Grendel Type II bolt carrier group with QPQ nitride finish
• Charging handle included
• Complete buffer system with Mil-Spec heavy duty buffer tube, buffer, and recoil spring
• Lower parts kit included
• SBR Ready configuration

Perfect For

• Builders planning SBR registration and stock installation
• Shooters seeking a compact 338 ARC platform with configuration flexibility
• SBR projects requiring complete component integration
• Builders selecting their own final setup

SBR Ready Configuration

This kit ships without a brace and is intended for customers selecting their own final setup. The configuration allows for stock installation once compliance requirements are met. The buffer system is included for complete lower assembly.

Complete Component Package

This kit includes the upper assembly, bolt carrier group, charging handle, buffer tube assembly with buffer and spring, and lower parts kit. All components required to complete an AR-15 build are provided except the lower receiver and stock or brace.

Compact 338 ARC Upper Assembly

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 parkerized 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 barrel features 5/8x24 threads with an included GI birdcage flash hider.

Trinity Force MX10 M-Lok 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. The lightweight aluminum construction enhances maneuverability without compromising structural integrity. The 6.5 Grendel Type II bolt carrier group with QPQ nitride finish provides enhanced corrosion resistance and reduced friction.

Lower receiver not included. Ships without a brace. Do not install a stock unless compliant with applicable laws. Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws.