Colt Soft Air M4A1 Rifle by King Arm's, Black Spin Up Adjustable Accuracy System. Includes Battery and Charger Ultra Grade all metal gears and gearbox with Nylon Fiber receiver 350-380 FPS using .20g BBs 300 round magazine Recommend King Arms .20g BB's or heavier for optimum performance. This product is restricted from shipment into the state of New York