ZEV CORE DUTY Rifles are intended for professional end users and serious shooters alike. The Duty rifle features the high quality and aesthetics ZEV rifles are known for. With mil-spec controls and functional upgrades this rifle will deliver excellent performance in the field or on the range. At ZEV we've made a commitment to performance driven firearms and the Core Duty rifle is no exception.Features: Mil-spec forged upper and lower receivers Wedge Lock free floating MLOK hand guard 16" 5. 56 chromoly barrel with 5R rifling and a melonite QPQ finish ZEV Muzzle Device acts as a 3-prong flash hider and muzzle compensator. Low profile fixed gas block mid length gas system Mil-spec chrome lined BCG with manganese phosphate finish Enhanced mil-spec two stage trigger nickel boron coated Radian Weapons Talon ambidextrous safety selector Magpul MOE pistol grip Magpul SL adjustable buttstock Includes one 30 round Magpul PMAG magazine