Details
Davidson Defense Oblivion 10.5" 5.56 NATO Complete Upper Build | 4150 CMV Nitride | Carbine-Gas | A2 Upper | FSB | Quad-Rail
The Davidson Defense Oblivion 10.5" 5.56 NATO complete upper build is an ideal choice for performance-driven AR-15 enthusiasts seeking classic military styling with tactical versatility. Chambered in 5.56 NATO, this upper features a 10.5-inch M4 profile barrel made from durable 4150 Chrome Moly Vanadium steel with nitride treatment for optimal longevity and corrosion resistance. The 1:8 twist rate ensures dependable bullet stabilization across diverse ammunition types from 55-grain to 77-grain projectiles. The A2 upper receiver is constructed from 7075-T6 aluminum with anodized black finish, ensuring strength and corrosion resistance with classic AR-15 styling. A fixed front sight base and carbine-length gas system further contribute to reliability in compact configurations. The carbine-length two-piece quad-rail handguard features durable aluminum construction, allowing for versatile mounting options and easy accessory integration suitable for various tactical situations. Complete with a mil-spec AR-15 charging handle, complete bolt carrier group, and GI birdcage flash hider, this complete upper build is ready for immediate installation and functionality on your AR-15 platform.
Key Features
- 10.5" M4 Profile Barrel: 4150 Chrome Moly Vanadium steel with nitride treatment and 1:8 twist rate for optimal longevity and dependable stabilization
- Carbine-Length Gas System: Reliable operation with fixed front sight base (FSB) for proven military-spec configuration
- Complete Bolt Carrier Group: Included for dependable cycling and consistent extraction performance
- Mil-Spec AR-15 Charging Handle: Standard Mil-Spec design for reliable operation and broad compatibility
- A2 Upper Receiver: 7075-T6 aluminum with anodized black finish for strength, corrosion resistance, and classic styling
- Carbine-Length Two-Piece Quad-Rail Handguard: Durable aluminum construction for versatile mounting options and easy accessory integration
- GI Birdcage Flash Hider: Effective flash reduction for improved visibility in tactical situations
- Fixed Front Sight Base: Standard military-spec FSB for proven sight configuration
- Complete Upper Build: Assembled upper with BCG and charging handle—ready for immediate installation
Perfect For
- Performance-Driven AR-15 Enthusiasts seeking classic military styling with complete upper ready for immediate use
- Tactical Applications where versatile mounting options and reliable operation are critical
- Classic AR-15 Builders who prefer traditional A2 upper receiver design with proven FSB configuration
- Shooters wanting immediate functionality with easy accessory integration for various tactical situations
Barrel Construction and Nitride Treatment
The 10.5-inch M4 profile barrel is made from durable 4150 Chrome Moly Vanadium steel, a proven material choice for strength and durability in compact barrel configurations. The M4 profile provides a balanced weight distribution suitable for shorter barrels, maintaining structural integrity while managing heat during rapid-fire sequences. The nitride treatment enhances surface hardness and provides optimal longevity through superior corrosion resistance, ensuring consistent performance across extended shooting sessions and varied environmental conditions. The 1:8 twist rate ensures dependable bullet stabilization, accommodating ammunition from lightweight 55-grain bullets for high-velocity applications to heavier 77-grain match projectiles, supporting versatility across tactical and performance-driven shooting applications.
Carbine Gas System and Fixed Front Sight Base
The carbine-length gas system is optimized for shorter barrel lengths like 10.5 inches, contributing to reliability with consistent extraction and ejection in compact configurations. The system is designed to work effectively across diverse ammunition types, ensuring dependable operation for performance-driven use. The fixed front sight base (FSB) serves dual purposes—functioning as both the gas block and providing a standard military-spec iron sight. This classic FSB configuration has been proven over decades of military use, offering robust construction, reliable performance, and a dependable backup sight system that requires no batteries or electronics. The fixed FSB maintains the traditional AR-15 aesthetic while providing proven functionality ideal for tactical situations.
A2 Upper Receiver and Bolt Carrier Group
The A2 upper receiver is constructed from 7075-T6 aluminum, offering exceptional strength-to-weight ratio and durability for demanding tactical use. The anodized black finish ensures strength and corrosion resistance while providing the classic AR-15 aesthetic that has defined the platform since its military adoption. The A2 upper receiver features the traditional forward assist and spent case deflector, providing full military-spec functionality for reliable operation. The included complete bolt carrier group ensures dependable cycling and consistent extraction performance across varied ammunition types and shooting conditions. The BCG is designed to work seamlessly with the carbine gas system, providing reliable extraction and ejection in the compact 10.5-inch configuration. Paired with a mil-spec AR-15 charging handle, the complete upper is ready for immediate installation and ensures smooth, dependable operation.
Two-Piece Quad-Rail Handguard System
The carbine-length two-piece quad-rail handguard features durable aluminum construction, providing four-sided Picatinny rail coverage at 12, 3, 6, and 9 o'clock positions. The two-piece design allows for versatile mounting options and easy accessory integration while enabling straightforward installation around the front sight base. This quad-rail design provides extensive mounting capabilities for lights, laser devices, vertical grips, and other Picatinny-compatible accessories at multiple positions, allowing shooters to configure the platform suitable for various tactical situations. The aluminum construction ensures durability while maintaining manageable weight for improved handling in compact configurations, supporting performance-driven applications.
GI Birdcage Flash Hider and Complete Upper Design
The included GI birdcage flash hider effectively reduces muzzle flash, improving visibility and target tracking during rapid-fire strings and low-light tactical situations. Flash reduction is particularly important on shorter barrels like 10.5 inches, where increased muzzle flash is more pronounced. This proven military-standard design delivers reliable flash suppression while maintaining a compact profile ideal for close-quarters tactical applications. This complete upper build combines classic A2 styling with modern tactical versatility, delivering a performance-driven platform ready for immediate installation and functionality on your AR-15 platform with proven military-spec components throughout.
Follow safe handling practices and manufacturer instructions for use. Ensure compliance with all applicable federal, state, and local laws. This upper is chambered in 5.56 NATO. Complete upper pairs with lower receiver—see configuration for complete firearm options.
