BEN and 3D show their 3D Printed AK105 Kochevnik AEG #3 in this bullpup project. They say the Kochevnik, is a head-turning custom AK105 bullpup conversion kit for your CM.047D airsoft gun. Choose from a kit with or without a mosfet, or opt for a complete replica built to your specifications. With a programmable mosfet, multiple firing modes, and a weight of around 4kg.