The Elite Force 4CR Airsoft Gun is designed for high-end, realistic mil-sim scenario gaming and airsoft events. The realistic gun has full metal gears and a metal receiver to add to the overall realistic effect. The adjustable hop-up system and removable-adjustable rear sight allows for precision shooting in any environment. The metal accessory rail lets you customize the gun to your specifications. A collapsible stock and the forearm grip guards let you have comfort as well as realism when in the heat of battle. The 300-round magazine allows for lots of firing between reloads, and the powerful 9.6V NiMH battery (not included) lets you shoot all day. Over 1200 shots a minute fire rate! Perfect for milsim (military simulation) and police force training scenarios.