Faxon Firearms .223 Wylde Pencil AR -15 Rifle Barrel Mid-Length 416-R Stainless QPQ Nitride 5R NP3 Extension Black Nitride 14.5. 223 Wylde Pencil Rifle Barrel. These AR15 Barrels created by Faxon Firearms are made with 5R hybrid rifling that reduces jacket deformation increases velocity and is easier to clean. This Faxon Firearms .223 Wylde Pencil Stainless Steel Rifle Barrel is built from tough stainless steel with a nitride finish inside and out for enhanced resistance to corrosion and wear and an extended lifetime of use. Deliver your most accurate shots yet by equipping this reliable Faxon Firearms .223 Wylde Pencil Match Series Rifle Barrel. Specifications for Faxon Firearms .223 Wylde Pencil AR -15 Rifle Barrel: Manufacturer: Faxon Firearms Color: Black Nitride Finish: Nitride Fabric/Material: 416R Stainless Steel Caliber: .223 Wylde Barrel Profile: Pencil Gas System Length: Mid Length Gas Block Journal Size-Diameter: .625 in Threads per Inch: 1/2x28 Barrel Twist Rate: 1-8 Barrel Material: 416R Stainless Steel Flutes: No Gun Make: AR Platform Gun Model: AR-15 Condition: New Gas Block Journal Size-Length: 1.1 in Gun Type: Rifle Features of Faxon Firearms .223 Wylde Pencil Rifle Barrel: Barrel Material: 416-R Stainless Steel Barrel Type: Button Rifled Barrel Caliber: .223 Wylde Barrel Twist: 1:8 Barrel Profile: Pencil Inside Finish: Salt Bath Nitride Outside Finish: Salt Bath Nitride Muzzle Thread: 1/2-28 Barrel Extension: M4 - Nickel Teflon Coated Magnetic Particle Inspected Recessed 11-degree Target Crown Package Contents: Faxon Firearms .223 Wylde Pencil Rifle Barrel What firearm models does the manufacturer say Faxon Firearms .223 Wylde Pencil AR -15 Rifle Barrel is compatible with? The manufacturer suggests that Faxon Firearms .223 Wylde Pencil AR -15 Rifle Barrel is compatible with AR-15Faxon Firearms 15BW8M14NPQ-5R-NP3: .223 Wylde Pencil AR -15 Rifle Barrel Mid-Length 416-R Stainless QPQ Nitride 5R NP3 Extension Black Nitride 14.5