{"product_id":"faxon-firearms-duty-series-gunner-profile-ar-15-barrel-5-56-nato-12-5-black-nitride-15a58m125ngq","title":"Faxon Firearms Duty Series Gunner Profile AR-15 Barrel 5.56 NATO 12.5\" Black Nitride 15A58M125NGQ","description":"Product Description\n\u003cp\u003eThe Faxon Firearms Duty Series Gunner Profile 12.5\" Mid-Length 5.56 NATO AR-15 Barrel is engineered for builders who demand the ideal balance of compact handling, durability, and precision. The Gunner profile is a purposeful blend of two of the most respected barrel profiles ever developed: the Government and Pencil. By combining Government-level rigidity behind the gas block with the forward weight savings of the Pencil profile, Faxon delivers a barrel that repositions the rifle's balance back toward the shooter, reducing fatigue during extended training sessions, duty use, or hunting. Manufactured entirely in-house in Cincinnati, Ohio, from certified 4150 Chrome-Moly Vanadium (CMV) steel and finished in a durable black nitride treatment inside and out, this barrel is built to withstand demanding conditions while maintaining exceptional accuracy. The mid-length gas system at 12.5\" provides smoother cycling and easier tuning whether running suppressed or unsuppressed, making it a standout choice for versatile carbine builds.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBalanced Gunner Contour:\u003c\/strong\u003e Merges Government-profile strength behind the gas block with Pencil-style weight savings forward, improving rifle balance, reducing front-end fatigue, and enabling faster target transitions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMid-Length Gas System:\u003c\/strong\u003e The 12.5\" mid-length configuration offers smoother cycling and more tuning flexibility than shorter gas systems, whether running a suppressor or shooting unsuppressed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuty-Grade 4150 CMV Construction:\u003c\/strong\u003e Built from certified 4150 Chrome-Moly Vanadium steel, button-rifled with a 1:8 twist to stabilize common 55-77 grain 5.56 projectiles, and finished with corrosion-resistant black nitride inside and out.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision Quality Control:\u003c\/strong\u003e Every barrel is fully stress relieved, air-gauge tested, magnetic particle inspected (MPI), finished with an 11-degree target crown, and individually headspace-checked using precision PTG gauges before leaving the facility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilder-Friendly Specifications:\u003c\/strong\u003e Features standard 1\/2-28 TPI muzzle threads, a .625\" gas block journal (1.9\" length), and an M4 barrel extension for broad compatibility with Mil-Spec AR-15 uppers and accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Faxon Firearms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e 15A58M125NGQ\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 816341026551\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e 5.56 NATO (also accepts .223 Remington)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 12.5\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProfile:\u003c\/strong\u003e Gunner (Government\/Pencil blend)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Certified 4150 CMV Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRifling:\u003c\/strong\u003e Button-Rifled, 1:8 Twist\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas System:\u003c\/strong\u003e Mid-Length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas Block Diameter:\u003c\/strong\u003e .625\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas Block Journal Length:\u003c\/strong\u003e 1.9\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Finish:\u003c\/strong\u003e Black Nitride (Salt Bath)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Finish:\u003c\/strong\u003e Black Nitride (Salt Bath)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMuzzle Threads:\u003c\/strong\u003e 1\/2-28 TPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Extension:\u003c\/strong\u003e M4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMuzzle Crown:\u003c\/strong\u003e 11-Degree Target Crown\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.22 lbs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuality Inspections:\u003c\/strong\u003e Stress Relieved, Air-Gauge Tested, Magnetic Particle Inspected (MPI), Headspace Checked\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Manufacture:\u003c\/strong\u003e USA (Cincinnati, Ohio)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Platforms:\u003c\/strong\u003e Mil-Spec AR-15 Upper Receivers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eDisclaimer: 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.\u003c\/em\u003e\u003c\/p\u003e\n]]\u0026gt;","brand":"FAXON FIREARMS","offers":[{"title":"Default Title","offer_id":44199560413306,"sku":"FLX-169223","price":173.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/293147865.png?v=1788353588","url":"https:\/\/tlooutdoors.com\/products\/faxon-firearms-duty-series-gunner-profile-ar-15-barrel-5-56-nato-12-5-black-nitride-15a58m125ngq","provider":"TLO Outdoors","version":"1.0","type":"link"}