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Radian AX556 Billet Upper/Lower Set – 223 Remington. CNC-machined billet aluminum, 15.5″ M-LOK handguard, ambidextrous controls. Build your dream rifle now
Radian AX556 Billet Upper/Lower Set – 223 Remington – Take your AR-15 build to the next level with the Radian AX556 Billet Upper/Lower Receiver Set, featuring a 15.5″ M-LOK handguard and a durable Black Cerakote finish.
Engineered for performance and precision, the AX556 set offers ambidextrous controls, ultra-tight tolerances, and lightweight strength — making it the premium choice for serious shooters.
Dominate your build with unmatched quality and innovative design from Radian Weapons.
The Radian AX556 Set delivers superior construction and performance advantages:
Left and right-handed operation: Magazine release, bolt catch, and safety are mirrored for true ambidextrous use.
Enhanced ergonomics: Fast, intuitive weapon manipulation for shooters of any style.
CNC-machined from aircraft-grade 7075-T6 aluminum: Superior strength without added weight.
Tight tolerances: Ensures consistent, reliable operation even in harsh conditions.
Free-floating design: Improves accuracy by reducing barrel stress.
Multiple attachment points: Customize with lights, grips, lasers, and more.
Protects against wear, corrosion, and impacts: Built to handle real-world abuse.
Sleek, professional appearance: Matches perfectly with premium components.
If you demand the best for your AR-15 build, the Radian AX556 delivers an elite combination of durability, ambidexterity, and modularity.
Every component is meticulously crafted to enhance your shooting experience — whether you’re competing, training, or defending.
✅ True ambidextrous function out of the box
✅ Top-tier materials and build quality
✅ Perfect foundation for custom high-performance rifles
Q: Will the AX556 set fit any AR-15 parts?
A: Yes, it’s fully compatible with standard AR-15 components and accessories.
Q: Is the handguard included in the set?
A: Yes, this version includes the 15.5″ free-floating M-LOK handguard attached to the upper.
Q: Is the AX556 legal in my state?
A: Some states have restrictions on certain firearm features. Please check your local regulations before purchasing.
Material: 7075-T6 Aluminum (Billet Machined)
Finish: Black Cerakote
Handguard: 15.5″ Free-Float M-LOK
Caliber: .223 Remington / 5.56x45mm NATO
Controls: Fully Ambidextrous (Mag Release, Bolt Catch, Safety)
Compatibility: Standard AR-15 Parts and Accessories
Manufacturer: Radian Weapons
Made in: USA
Build a rifle that performs as good as it looks.
With the Radian AX556 Upper/Lower Receiver Set, you’re investing in innovation, strength, and true shooting performance.
Order yours today and create your next elite-level AR-15 masterpiece!
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