Toronto Airsoft are recommending the MKI and MK2 Ruger Pistols from KJ Works if you are looking for budget and good performing gas pistols. These are non-blowbacks, and can be powered with Green Gas or Propane, or for the case of the MK2, CO2. They are hard hitting, with muzzle velocities from 350 to 450 fps. The MK1 magazines are compatible with the MK2 pistol.