AX556 Billet Upper/Lower Receiver Set 8.5″ Handguard – OD Green
The Radian AX556 Billet Upper/Lower Set offers unmatched machining precision, ambidextrous controls, and a compact 8.5” M-LOK handguard, making it an ideal foundation for SBR builds, PDW configurations, or CQB setups. Built from billet aluminum, it maintains tight tolerances and superior durability, ensuring flawless function in tactical, duty, or competitive environments. Finished in Olive Drab Green Cerakote, this set delivers rugged protection with an aggressive aesthetic while remaining highly adaptable for both left- and right-handed shooters.
Every Model 1 build is hand-assembled, inspected, test-fired, and cleaned, guaranteeing next-level quality control for the most discerning shooters.
Billet Upper & Lower ReceiversCNC-machined for maximum precision, durability, and refined aesthetics.
Fully Ambidextrous ControlsIncludes bolt catch/release, magazine release, and safety selector for optimized usability from either side.
Raptor-SD Ambidextrous Charging HandleEnhanced gas venting design, perfect for suppressed applications.
Radian Talon 45/90 Safety SelectorUser-configurable for either 45-degree quick throw or standard 90-degree engagement.
8.5″ M-LOK HandguardCompact and lightweight, offering rigid accessory mounting and improved maneuverability.
Olive Drab Green Cerakote FinishCorrosion-resistant and tough, built to endure demanding conditions.
Lightweight Forward Assist & Anti-Rotation PinsEnhances reliability without adding excess weight.
Aluminum Barrel Nut & Barrel Nut Wrench IncludedProvides secure barrel attachment and easy installation.
Hand-Inspected & Test-FiredGuaranteed for life.
Specifications
- Caliber: 5.56 NATO / .223 Remington / Multi
- Receiver Material: Billet Aluminum
- Finish: Olive Drab Green Cerakote
- Handguard: 8.5″ M-LOK Modular Interface
- Safety Selector: Radian Talon Ambidextrous (45/90 Configurable)
- Charging Handle: Radian Raptor-SD Ambidextrous
- Bolt Catch & Release: Fully Ambidextrous
- Magazine Release: Fully Ambidextrous
- Included Hardware:
- Aluminum Barrel Nut & Barrel Nut Wrench
- Enhanced Takedown Pin Set
- Hand Guard Cross Bolts, Washers & Nuts
