Daniel Defense DD5 V4 308 Winchester 18in Anodized Black Semi Automatic Modern Sporting Rifle - 20+1 Rounds - The DD5 V4 provides users of the Daniel Defense semi-automatic platform even greater long-range precision shooting capability. The cold hammer forged proprietary steel chrome-lined barrel provides a lifetime of accuracy and durability. This highly accurate and durable rifle includes an adjustable gas block that allows for a consistent feel whether shooting suppressed or unsuppressed. The perfected bolt carrier group reduces overall recoil impulse and is easy to maintain and operate in all conditions. Innovative 4-Bolt Connection System 6 Position Mil-Spec 7075-T6 Aluminum Receiver Extension Accepts All SR-25 Magazines Daniel Defense Full-Latch Impact Plastic Case Made In The USA