Airsoft-Rus got the afforable Classic Army M132 Microgun in stock and here is Alexander present it... "This version of the minigun has 4 barrels with their hop-up adjustments. Adjustment of hop-up is carried out with the help of screws, which are hidden under the plug. The machine gun can be fed either from gas green, or from compressed air with a pressure of up to 7-8 atmospheres. Rotation of the barrel and the supply of balls is carried out by means of an electric motor, which means that it will require 11.1v batteries for operation."