FAXON 5.56 Nato AR-15 Duty Series Carbine Barrel Socom Profile 10.5"

The Faxon Duty Series 10.5" SOCOM Profile 5.56 NATO barrel blends compact handling with improved dwell and gas timing from a carbine-length system. Machined from certified 4150 CMV, button-rifled with a 1:8 twist, and finished inside and out with durable black nitride, this 10.5" SOCOM barrel is built for reliability, heat resistance, and consistent accuracy in duty and tactical carbines. Key Benefits: Optimized carbine length: 10.5" gives better dwell and gas timing compared to shorter pistol-length barrels for smoother, more reliable cycling.Duty-grade construction: 4150 CMV steel plus nitride finish for long life under hard use and corrosion resistance.Accuracy-focused details: Fully stress relieved, air-gauge tested, and finished with an 11° target crown for repeatable performance.Universal muzzle compatibility: 1/2-28 threading accepts common brakes, compensators, and direct-thread suppressor adapters.Robust gas compatibility: Carbine-length gas and .750" gas block journal support reliable operation across ammunition types.Strict quality control: Magnetic particle inspected, individually headspace-checked with hardened gauges. Specifications: Caliber: 5.56 NATOLength: 10.5" Profile: SOCOMMaterial: 4150 CMVRifling: Button-rifled, 1:8 twistFinish: Black Nitride (inside & out)Gas System: Carbine-lengthGas Block Diameter: .750"Gas Block Journal Length: 1.9"Muzzle Thread: 1/2-28 UNEFBarrel Extension: M4Weight: 1.10 lbQuality & Inspection: Stress relieved, air-gauge tested, magnetic particle inspected, headspace checkedMuzzle: 11° target crown Why Choose Faxon Duty Series: From certified 4150 CMV bar stock to final inspection, each Faxon Duty Series barrel is manufactured and quality-checked in-house. The SOCOM profile increases thermal mass for better heat handling and longevity, while a carbine-length gas system offers improved dwell and more forgiving gas timing than shorter systems — translating to smoother function and reduced cyclic harshness in many setups. Installation & Compatibility: Compatible with standard AR-15 Mil-spec upper receivers and bolts using the M4 barrel extension.Use a .750" gas block (set-screw or clamp-on) on the 1.9" journal.Confirm muzzle device/suppressor compatibility with 1/2-28 threading. Always verify suppressor caliber rating.For optimal reliability, tune buffer/spring and gas settings to your specific ammunition and muzzle device. Informations: For use with 5.56 Nato and .223 Rem ammunitionSerial number engraving included. If you don’t want this, you must inform us before placing your order!C.I.P. proof NOT includedFor compatible accessories, see accessories under this article