The appearance and data may be misleading, but this is not a replica of the KWC system, magazines are not interchangeable! (But the slides are.) The Fume version looks great but immediately gets discolored on the grip, I'm attaching photos. Despite lubrication, it jams terribly, maybe the mechanism needs to "break in." After shooting several capsules (each with 60 shots), it still jams often, especially with the second magazine, frequently double-feeding BBs, and you have to struggle to remove them. Loading the magazine is tedious, the spring does not lock. When firing, you feel gas blows to the face, maybe it's a valve adjustment issue but I checked all the seals, valve, nozzle, and everything looks fine. It's a pity because it looks great. If you are looking for a reliable 1911 replica, buy something more expensive from KWC: Ranger, Swiss Arms, Remington or Umarex Colts, or Sig 1911 WTP or Emperor Scorpion.