F Diamondback Firearms OEM Replacement Barrel, Remington, AR-15, .223 Wylde, 18in, Medium Profile, Mid-Length, 1-7 Twist, 1/2 x 28 Thread, CMV Steel, Black Nitride, 223WM18M50B7R $91.19 223WM18M50B7R show more like this Dvor