Davidson Defense Oblivion w/Gauntlet Arms Brace 10.5-inch Carbine-Gas 1:8 5.56 NATO AR-15 FSB Carbine-Length Quad-Rail Handguard Pistol Full Build Kit

Davidson Defense Oblivion with Gauntlet Arms Brace 10.5" Carbine-Gas 5.56 NATO AR-15 Full Build Kit | 1:8 Twist | 4150 CMV Nitride | Complete Upper & Brace Assembly

Build a complete AR-15 pistol upper with stabilizing brace using the Davidson Defense Oblivion full build kit. This comprehensive kit features a 10.5-inch barrel machined from 4150 Chrome Moly Vanadium steel with nitride finish for exceptional durability and corrosion resistance. The 1:8 twist rate stabilizes bullet weights from 55 to 77 grains, providing versatility across ammunition types. Chambered in 5.56 NATO for compatibility with both 5.56 and .223 Remington. The A2 upper receiver is forged from 7075-T6 aluminum with black anodizing. Includes a complete bolt carrier group for ready-to-fire functionality, quad-rail handguard with extensive Picatinny mounting surfaces, GI Birdcage flash hider, heavy-duty pistol buffer tube, and Gauntlet Arms nylon-reinforced polymer stabilizing brace. Everything needed for a complete upper and brace assembly in one kit.

Key Features

• 10.5-Inch M4 Profile Barrel – Compact length for close-quarters and vehicle applications
• 4150 Chrome Moly Vanadium Steel – Mil-spec barrel material for durability and longevity
• Nitride Finish – Enhanced corrosion resistance and reduced cleaning requirements
• 1:8 Twist Rate – Stabilizes 55-77 grain projectiles for ammunition versatility
• 5.56 NATO Chamber – Accepts both 5.56 NATO and .223 Remington ammunition
• Complete Bolt Carrier Group – Ready-to-fire functionality included
• A2 Upper Receiver – Forged 7075-T6 aluminum with black anodized finish
• Quad-Rail Handguard – Aluminum construction with four Picatinny rail surfaces
• GI Birdcage Flash Hider – Standard A2-style flash suppression
• Gauntlet Arms Stabilizing Brace – Nylon-reinforced polymer construction for enhanced stability
• Heavy-Duty Pistol Buffer Tube – Complete buffer tube assembly included
• Comprehensive Build Kit – Upper assembly and brace components in one package

Perfect For

• AR pistol builders seeking a complete upper and brace solution in one kit
• First-time builders wanting all necessary components without sourcing separately
• Compact home defense and vehicle configurations prioritizing maneuverability
• Shooters building stabilizing brace pistols for single-hand shooting stability

Complete Upper and Brace Solution

This kit eliminates the complexity of sourcing individual components by providing everything needed for a complete upper assembly and stabilizing brace installation. The included bolt carrier group means this upper is ready to fire once assembled—no need to purchase BCG separately. The Gauntlet Arms stabilizing brace and heavy-duty pistol buffer tube provide the complete buffer system and brace assembly needed to finish your AR pistol build. Simply pair this kit with a pistol lower receiver to complete your firearm.

4150 CMV Barrel Performance

The 10.5-inch barrel is machined from 4150 Chrome Moly Vanadium steel, the mil-spec standard for AR-15 barrels used in military and law enforcement applications. This steel alloy provides exceptional strength, heat resistance, and barrel life even under rapid-fire conditions. The nitride finish penetrates the steel surface to create a hardened layer that resists corrosion, reduces copper fouling buildup, and simplifies cleaning. At 10.5 inches, this barrel length is optimized for compact builds while maintaining sufficient velocity for effective 5.56 NATO performance.

Versatile 1:8 Twist Rate

The 1:8 twist rate provides rifling stabilization for modern ammunition across a wide bullet weight range. This twist adequately stabilizes lightweight 55-grain bulk ammunition, 62-grain M855 projectiles, and heavy 77-grain match ammunition used in precision applications. The 1:8 twist strikes an optimal balance between lightweight projectile performance and heavy bullet stabilization, making it the most versatile twist rate for general-purpose 5.56 builds.

Gauntlet Arms Stabilizing Brace System

The included Gauntlet Arms stabilizing brace features nylon-reinforced polymer construction for durability and weather resistance. Stabilizing braces are designed to improve single-handed shooting stability for AR pistol configurations. The heavy-duty pistol buffer tube provides the mounting platform for the brace and houses the buffer and spring assembly necessary for proper cycling. This complete brace system pairs with your pistol lower receiver to create a functional AR pistol configuration.

Maximum Accessory Mounting

The aluminum quad-rail handguard with black finish provides four continuous Picatinny rail surfaces along the top, bottom, and both sides. This design maximizes mounting options for weapon lights, laser aiming devices, vertical foregrips, angled grips, and sling mounts. The full-length rails allow positioning accessories exactly where needed for your shooting style. The top rail section aligns with the upper receiver rail for uninterrupted optic mounting.

7075-T6 Forged Upper Receiver

The A2-style upper receiver is forged from 7075-T6 aluminum, providing superior strength compared to billet or cast alternatives. The black anodized finish provides corrosion resistance and wear protection. The A2 upper includes the carry handle-style rear sight tower, giving you integrated backup iron sights. The Picatinny flat-top rail section allows mounting of optics, red dots, or magnified scopes forward of the carry handle.

Follow all applicable federal, state, and local laws regarding AR pistol configurations and stabilizing brace regulations. Verify compliance with current regulations before completing your build. Always follow safe handling practices and manufacturer guidelines.