Faxon FX-5510X Ion-X Hyperlite 5.56 Barrel - 16" Black Cerakote

The Faxon FX-5510X Ion-X Hyperlite barrel delivers exceptional accuracy and weight reduction for AR-15 builds demanding premium performance. This 5.56 NATO barrel features advanced ion bonding treatment and precision manufacturing that consistently produces sub-MOA groups with quality ammunition.

What Makes This Different

The Ion-X treatment creates a harder, more corrosion-resistant surface than standard nitride or chrome-lined barrels. Faxon's proprietary process bonds ions at the molecular level, extending barrel life while maintaining the precise bore dimensions critical for accuracy. The Hyperlite profile removes material in strategic locations, reducing weight by approximately 4 ounces compared to government profile barrels without sacrificing structural integrity.

Key Features

• Ion-X surface treatment for enhanced durability and corrosion resistance
• Hyperlite contour reduces weight while maintaining rigidity
• 416R stainless steel construction with black Cerakote finish
• 5.56 NATO/.223 Remington chamber with 1:8 twist rate
• Mid-length gas system for optimal cycling and reliability
• M4 feed ramps and .750" gas block journal
• Sub-MOA accuracy guarantee with match-grade ammunition

Field testing demonstrates consistent performance across temperature extremes and extended firing schedules. The mid-length gas system provides smoother cycling compared to carbine-length systems, reducing bolt carrier velocity and extending component life. Competition shooters report maintained accuracy through rapid-fire strings, while tactical applications benefit from the reduced weight during extended carry.

Technical Specs

• Length: 16 inches
• Material: 416R stainless steel
• Finish: Black Cerakote over Ion-X treatment
• Chamber: 5.56 NATO/.223 Remington
• Twist Rate: 1:8 inches
• Gas System: Mid-length
• Gas Block Journal: .750 inches
• Muzzle Threading: 1/2x28 TPI
• Weight: Approximately 1.6 pounds
• Made in USA

This barrel represents the intersection of precision manufacturing and practical innovation. The combination of Ion-X treatment and Hyperlite profiling addresses the two primary concerns of serious shooters: accuracy degradation over time and unnecessary weight.