This M1928 Chicago EBB is realistic designed in all aspect such as the operation system, dimension and materials. All markings are engraved on the receiver. It is full metal constructed with real wood handguard, grip and stock. Steel is used for the making of sling swivel, screws & nuts and the pivot plate etc. The rear sight is realistic designed and is adjustable as user's preference. It features with electric blowback system to simulate the recoil action of the real rifle. Also, it is equipped with 9mm bearing gearbox and quality internal parts. The stock is capable to store a 9.6V large type battery. Package comes with a 450 rounds drum magazine.