I have a Firepower Assault 75 round drum that I paid $220 for during the ban. It worked when I bought it, but was a bit finicky so I took it apart and tried to make the springs a bit tighter and made it worse so it will need a gunsmith or someone with more ability and patience than me to make it work. When it did work it was a ton of fun! It looks cool as all get out. I'm asking $80.