Original Maruzen. This gun was released early 2002 and has been discontinued for ages. Crazy rate of fire, it's a beast collectors item and has never been fielded. Nozzle has been replaced so the gun can handle green gas. Original nozzle included as well. ICS mp5k stock added on, as well as a rail mount on top of the gun. Gun shoots great though the one mag definitely needs some TLC since it leaks. Heard the WELL and WE mp5k mags will work with this gun no problem. Just looking to see if anyone really wants this rare beauty. Throw some offers or questions my way and i'll get back to you. I have many other items up for sale or trade so be sure to check out the rest of my page incase you find something you need!