Davidson Defense Foxhole 10.5-inch Carbine-Gas 1:8 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Complete Upper Build

Davidson Defense Foxhole 10.5" Upper Build | 5.56 NATO, Freefloat M-Lok Handguard, Nitride BCG & Charging Handle Included

The Davidson Defense Foxhole 10.5" Upper Build delivers a comprehensive component package for versatile AR-15 pistol configurations. Built around a 10.5-inch "Sandel" barrel crafted from 4150 Chrome Moly Vanadium steel with a phosphate finish and 1:8 twist rate, this upper provides reliable stabilization across 55gr–77gr 5.56 NATO ammunition. The carbine-length gas system paired with a micro low-profile gas block ensures consistent cycling and a clean sight picture. The 7075-T6 aluminum upper receiver features a durable black anodized finish, while the freefloat M-LOK handguard offers lightweight accessory mounting without barrel contact. A nitride-finished 9310 alloy steel bolt carrier group and mil-spec AR-15 charging handle are included, providing all essential components for your upper build. Ideal for builders seeking quality materials and modular design, the Foxhole upper combines proven specifications with customization flexibility.

Key Features

• 10.5" "Sandel" barrel made from 4150 Chrome Moly Vanadium steel with phosphate finish
• 1:8 twist rate stabilizes 55gr–77gr 5.56 NATO projectiles
• Carbine-length gas system with micro low-profile gas block for reliable cycling
• 7075-T6 aluminum upper receiver with black anodized finish
• Freefloat M-LOK handguard for lightweight accessory mounting and enhanced accuracy
• Nitride-finished 9310 alloy steel bolt carrier group included for durability
• Mil-spec AR-15 charging handle included
• Complete component package with all essential upper parts

Perfect For

• Custom AR-15 pistol builds prioritizing compact dimensions and maneuverability
• Home defense and vehicle applications where compactness is critical
• Builders seeking a complete upper kit with all essential components included
• Shooters upgrading to freefloat M-LOK handguard systems
• Gunsmiths and enthusiasts looking for a reliable upper build with quality materials

Durable Barrel with Proven Materials

The 10.5-inch "Sandel" barrel features 4150 Chrome Moly Vanadium steel construction with a protective phosphate finish that resists corrosion and wear. The 1:8 twist rate handles a broad spectrum of bullet weights, from lightweight 55gr to heavier 77gr projectiles, providing flexibility in ammunition selection for training, competition, or defensive use. This combination of materials and specifications ensures consistent accuracy and reliability over thousands of rounds.

Freefloat M-LOK Handguard for Accuracy and Modularity

The freefloat M-LOK handguard enhances accuracy by eliminating barrel contact, allowing the barrel to vibrate naturally without interference. The M-LOK slots provide a modern, low-profile mounting interface for lights, grips, and sling attachments, while the lightweight design reduces front-end weight for improved handling. This handguard strikes an ideal balance between accessory flexibility and ergonomic comfort.

Nitride BCG and Mil-Spec Charging Handle

The included nitride-finished 9310 alloy steel bolt carrier group offers superior wear resistance, corrosion protection, and ease of cleaning compared to standard phosphate finishes. The nitride treatment penetrates the steel surface, creating a harder, more durable finish that maintains performance under high round counts. Paired with a mil-spec AR-15 charging handle, this kit provides all the essential components needed for your upper receiver build.

Ready for Custom Configuration

The Foxhole Upper Build includes all essential components for a functional upper receiver. The micro low-profile gas block maintains a clean sight picture, while the M-LOK handguard gives you the freedom to configure accessories exactly how you need them. Whether you're building a dedicated home defense pistol or a versatile range companion, the Foxhole upper offers the modularity and performance serious builders demand.

Disclaimer: Follow all safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Verify compatibility with your lower receiver and components before purchase.