The JG sniper rifle JG376 is made of metal and plastic. The whole body is made of plastic while as the barrel, the bolt carrier, the trigger mechanism, the cocking handle and the upper body is made of aluminium. The replica is equipped with a top RIS rail which allows the attachment of optical aiming devices. No need for gas or batteries, Pull back the bolt to compress the spring and push forward which loads the bb and your ready to fire. The gun is light and easy to operate.