Faxon Firearms Match Series Barrel Features The Faxon Firearms Match Series barrel is manufactured in-house from gun barrel quality 416R stainless steel bar stock then cut with 5R hybrid rifling that places lands opposite grooves to reduce jacket deformation and improve bullet velocity. Chambered in 22 ARC the 20 barrel with 1:7 twist takes full advantage of this modern high performance cartridge and the rifle length gas system is tuned for smooth reliable cycling. Every barrel is individually magnetic particle inspected for safety and precision headspaced with hardened gauges before it ships. An 11-degree target crown protects the muzzle s rifling from damage while supporting consistent accuracy and the Flame Fluted profile cuts weight from the barrel while increasing surface area for better heat dissipation during sustained strings of fire. A Salt Bath Nitride finish treats the barrel inside and out locking in the bore surface for extended barrel life while resisting corrosion in the field. The M4 barrel extension is coated in Nickel Teflon which tightens the fit between the extension and the receiver for improved accuracy while maintaining slick dry lubricity during cycling. Threaded 1/2x28 at the muzzle the barrel accepts a wide range of muzzle devices and is compatible with AR-15 platform rifles using a 6.5 Grendel bolt and bolt carrier group. Made entirely in Cincinnati Ohio this barrel gives competitors and precision shooters a proven upgrade backed by Faxon s reputation for match grade quality. Faxon Firearms Match Series Barrel Specifications Manufacturer: Faxon Firearms Model: Match Series Type: Replacement Barrel Caliber: 22 ARC Barrel Length: 20 in Material: 416R Stainless Steel Barrel Type: Button Rifled 5R Twist Rate: 1:7 in Barrel Profile: Flame Fluted Crown: 11-Degree Target Crown Finish: Nitride Inside and Outside Thread Pattern: 1/2x28 Gas System: Rifle Length Gas Block Diameter: .750 in Gas Block Journal Length: 1.1 in Barrel Extension: M4 Nickel Teflon Coated Bolt Compatibility: 6.5 Grendel Bolt/BCG Compatible Hosts: AR-15 Weight: 2.13 lbs Available At: GrabAGun