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Hi Efren, this is a 416R stainless barrel. Stay safe & have a great day!

F1 Firearms FDR-15 223 Wylde 16in Black Semi Automatic Modern Sporting Rifle - 30+1 Rounds - F-1 Firearms Sportsman's exclusive Stars and Stripes FDR-15 16in Black semi-automatic modern sporting rifle. F-1 Firearms is an American and Texas-based manufacturer of high-quality, innovative and reliable modern sporting rifles. F-1 Firearms manufactures 90% of all products in-house which provides them the capability to control critical tolerances for each rifle component. This results in ultimate function, accuracy, and dependability. F-1 Firearms Patented Stars and Stripes Forged Receiver Set F-1 Firearms 13.7-inch S7M Free Float Handguard Type III Black Anodized Finishing 16in .223 Wylde Chambered Black Nitride Barrel - this barrel will shoot both .223 Remington and 5.56 NATO ammunition safely without sacrificing performance. 5.56 NATO Black Nitride Bolt Carrier Group Barrel Material 416R stainless steel Mil-Spec Trigger Mil-Spec Stock Mil-Spec Grip Mil Spec Charging Handle A2 Flash Hide

Hi Efren and welcome. This model has a 16" Match Grade 416R Stainless Steel Barrel 1:8 Twist with 1/2"-28 A2 Flash Hider. Cheers, stay safe and enjoy!