Bought the same in US Tennessee and use a Hill 5th gen pump to charge it. Could not be happier with the whole kit. I swapped out the front for an iris and the rear for an iris as well. Both Gehmann units. Mine loves H&N 8.18’s Finale Heavy Match. After initial 250 rounds (cylinder and a half of air) the group settled in nicely. Beautiful gun and a joy to shoot! Champions choice in the US in Lavergne TN is an excellent supplier!