This gun functions and nothing is wrong with it. Echo 1 m249. Has a shs motor, brass tight bore with prommy purple bucking, and infected armory mosfet. Has a 14.8 lipo in the hand guard and 7.4 in the box mag. It can be switched by the toggle switch behind the foregrip to select the rate of fire. NO TRADES NO TRADES NO TRADES. BUYER PAYS SHIPPING. $180 SHIPPED NON NEGOTIABLE