I had the older version of this KWC and the CO2 caused the outer barrel to snap the four prongs that hold the barrel in place while the gun is assembled. Bad mojo for me. Had to file down the top of the barrel to make it work. BTW, I went ahead and bought the extended barrel/silencer kit from Redwolf and it became the most feared pistol EVER seen by people I showed. I chrono'ed the thing half way through a CO2 and it got up to 485.... Simply an amazing range. I used to, and still could take this pistol out by itself and carry extra BBs to put a fight up against most AEGs. I hit guys from 75 ya
