Davidson Defense High Orbit w/SBA3 Brace 10.5-inch Pistol-Gas 1:8 .338 ARC AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit

Davidson Defense High Orbit with SBA3 Brace 10.5 Inch 338 ARC AR-15 Full Build Kit

This 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 HBAR barrel with pistol gas system, 10 inch Trinity Force MX10 M-Lok freefloat handguard, complete bolt carrier group, charging handle, buffer system, lower parts kit, and SB Tactical SBA3 adjustable stabilizing brace. The upper receiver is forged 7075-T6 aluminum with anodized finish and M4 feed ramps. The barrel is 4150 CrMoV steel with parkerized finish and 1 in 8 twist rate.

Key Features

• 10.5 inch 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
• 7075-T6 forged aluminum upper receiver with anodized finish and M4 feed ramps
• 10 inch Trinity Force MX10 M-Lok freefloat handguard
• Flash hider muzzle device included
• Complete bolt carrier group
• Charging handle included
• Complete buffer system with Mil-Spec heavy duty pistol buffer tube, buffer, and recoil spring
• Lower parts kit included
• SB Tactical SBA3 adjustable stabilizing brace

Perfect For

• Builders seeking a complete 338 ARC pistol platform
• Shooters prioritizing compact dimensions with brace adjustability
• Home defense or vehicle applications
• Pistol builds requiring minimal additional components

Complete Component Integration

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

SB Tactical SBA3 Adjustable Brace

The SBA3 stabilizing brace features an adjustable design with multiple length of pull positions. The brace is paired with a complete buffer system including Mil-Spec heavy duty pistol buffer tube, buffer, recoil spring, and necessary hardware for installation.

Compact 338 ARC Configuration

The 10.5 inch 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 flash hider muzzle device reduces muzzle rise. The upper receiver features M4 feed ramps for reliable feeding.

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 handguard allows for versatile accessory attachments while maintaining structural integrity.

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