Product Description The Faxon Firearms Match Series 20" Heavy Fluted .223 Wylde AR-15 Barrel is a precision-engineered rifle barrel built for shooters who demand long-range accuracy, consistent performance, and exceptional durability. Manufactured entirely in-house from gun-barrel-quality 416-R stainless steel bar stock, this barrel features 5R button rifling in a versatile 1:8 twist that supports a broad range of bullet weights. The .223 Wylde hybrid chamber maximizes accuracy with standard .223 Remington ammunition while safely handling 5.56 NATO pressures. The Heavy Fluted profile increases surface area for faster heat dissipation and enhanced rigidity, without the penalty of a full straight heavy contour. A salt bath nitride finish applied inside and out protects against corrosion and fouling while extending barrel life. The Nickel Teflon-coated M4 barrel extension improves lubricity and tightens the extension-to-receiver interface for repeatable, consistent accuracy. Every barrel is stress relieved, air-gauge tested, individually MPI inspected, and headspace verified before leaving the facility. Product Highlights Heavy Fluted Profile: Adds rigidity and increases cooling surface area for sustained strings of fire, with less weight than a comparable straight heavy contour. .223 Wylde Chamber: Delivers match-grade accuracy with .223 Rem ammunition while safely accommodating 5.56 NATO chamber pressures. 416-R Stainless with 5R Rifling: Hybrid 5R rifling reduces jacket deformation, improves velocity, and makes bore cleaning significantly easier compared to traditional rifling. Salt Bath Nitride Finish Inside and Out: QPQ nitride treatment locks in the bore, resists corrosion and fouling, and extends service life under high round counts. Nickel Teflon M4 Extension: Provides superior dry lubricity and a tighter receiver fit, contributing to consistent harmonics and improved accuracy. Rigorous Quality Control: Stress relieved, air-gauge tested, individually MPI inspected, and headspace verified in-house for reliable, safe operation. Specs Brand: Faxon Firearms Caliber / Chamber: .223 Wylde Barrel Length: 20" Barrel Profile: Heavy Fluted Barrel Material: 416-R Stainless Steel Rifling Method: Button-Rifled, 5R Barrel Twist: 1:8 Gas System: Rifle Length Outside Finish: QPQ Salt Bath Nitride (inside and out) Muzzle Threads: 1/2x28 Gas Block Diameter: .750" Gas Block Journal Length: 1.1" Barrel Extension: M4 - Nickel Teflon Coated Crown: 11-Degree Recessed Target Crown Weight: 3.0 lbs UPC: 816341023185 MPN: 15BW8R20FHQ-5R-NP3 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer. ]]>