psycho plates

Remote controlled Newtype weapons used by the Moon Gundam, inherited from the MRX-013-3 Psycho Gundam Mk-IV G-Doors, these plates can be used as ramming weapons or as shields and are mounted on the backpack when not in use, unlike Funnels or Bits, they don't fire beams but as a tradeoff they are extremely durable.
The G-Doors was equipped with 16 Psycho Plates before its destruction while the Moon Gundam inherited half of them.