{"product_id":"faxon-duty-bbl-556nato-13-9-mid-gnr","title":"Faxon Firearms - Duty Series Gunner Profile 13.9\" 5.56 NATO Barrel","description":"\u003cp data-mr-notice=\"state-restrictions\"\u003e\u003cb\u003e⚠ STATE RESTRICTIONS:\u003c\/b\u003e \u003cb\u003eThis item cannot be shipped to Connecticut, Illinois, New Jersey or Washington. Orders shipping to these states will be cancelled and issued a full refund.\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eThe \u003cb\u003eFaxon Duty Series Gunner Profile 13.9\" 5.56 NATO AR-15 Barrel\u003c\/b\u003e is designed for those seeking a balance of lightweight maneuverability and robust performance. Crafted from \u003cb\u003e4150 CMV steel\u003c\/b\u003e and finished with a \u003cb\u003esalt-bath QPQ nitride\u003c\/b\u003e, this barrel offers exceptional durability and corrosion resistance. The \u003cb\u003eGunner profile\u003c\/b\u003e features a Government taper behind the gas block and a pencil-light section ahead, ensuring optimal balance and reduced swing weight.\u003c\/p\u003e\u003cp\u003eThis barrel is engineered with a \u003cb\u003emid-length gas system\u003c\/b\u003e, featuring a .086\" port positioned 9.66\" from the breech, providing a softer recoil impulse and efficient cycling with a standard carbine buffer. The 13.9\" length offers a compact build while maintaining effective dwell time, making it ideal for suppressed use. Each barrel is meticulously machined and headspaced with an M4 extension, ensuring reliability and precision.\u003c\/p\u003e\u003cp\u003eFaxon's commitment to quality is evident in their 100% wet magnetic-particle inspection and air-gauged rifling, delivering consistent performance and accuracy. The barrel is compatible with any mil-spec AR-15 upper and is designed to work seamlessly with a .625\" low-profile gas block and a mid-length gas tube.\u003c\/p\u003e\u003cp\u003eVoted Favorite Aftermarket Barrel by Shooting Sports Retailer since 2022, this barrel is a testament to Faxon's dedication to crafting high-quality firearm components.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e 4150 CMV bar stock\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e Salt-bath QPQ nitride, bore and exterior\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength:\u003c\/b\u003e 13.9\" (13.905\" on the print)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWeight:\u003c\/b\u003e 1.26 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRifling Twist Rate:\u003c\/b\u003e 1:8 RH, 6-groove button rifling\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGas System:\u003c\/b\u003e Mid-length with .086\" port\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGas Block Diameter:\u003c\/b\u003e .625\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMuzzle Thread:\u003c\/b\u003e 1\/2x28 UNEF-2A\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eChamber:\u003c\/b\u003e 5.56 NATO (fires 5.56 NATO and .223 Rem)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMade in:\u003c\/b\u003e Greater Cincinnati, Ohio, USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWarranty:\u003c\/b\u003e Faxon Lifetime Guarantee\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eProfile:\u003c\/b\u003e Gunner: .980\" chamber journal, Government taper from .675\" to .610\" behind the gas block\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGas Journal:\u003c\/b\u003e .625\" (.6240–.6247\"), 1.9\" long\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eExtension:\u003c\/b\u003e M4 feed ramps, black oxide, torqued to 150 ft-lb, pinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHeadspace:\u003c\/b\u003e 100%, 5.56 go\/no-go gauge after assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAmmunition:\u003c\/b\u003e 55 to 77 gr; 5.56 NATO and .223 Remington\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGas Tube:\u003c\/b\u003e Mid-length: Faxon 304 stainless mid-length gas tube\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Faxon Firearms","offers":[{"title":"Default Title","offer_id":47336198340697,"sku":"RSR-FX15A58M139NGQ","price":189.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/9860\/2329\/files\/faxon_RSR-FX15A58M139NGQ-1.jpg?v=1791061297","url":"https:\/\/mountainready.online\/products\/faxon-duty-bbl-556nato-13-9-mid-gnr","provider":"mountainready.online","version":"1.0","type":"link"}