I have a Drozd Blackbird for sale! It will include the original barrel and a pair of the harder breech o-rings. The barrel is from a qb-78 and the shroud is a leftover from a FX impact. I wired the solenoid with high amp connectors for ease of takedown. It powers up and runs perfectly from an electrical standpoint, however it will need one of those breech o-rings installed. The control board is stock. I have never actually shot this one as I was always using the Drozd bumblebee with the single mag. The only option for gas at this point is the three capsule 12 gram affair. You can plumb in a fitting in place of the Co2 array and attach a tank. I'm asking 700$ plus shipping cost. Preferably a USPS money order. PM any questions....