The Umarex SAA .45 is a Colt Single Action Army Revolver also known as the SAA, Model P, Peacemaker, or M1873. It is one of the most realistic single action cowboy-style revolver available. The Umarex SAA is full metal construction, with a weight of 932g. The grip is made of a dark imitation wood. The revolver comes with six shells, these are removed and a bb is placed in each. Like the real steel model, the loading latch on the side can be flipped open to remove the shells & load the shells, the hammer is pulled back half way so the barrel will rotate. The working extractor rod below the barrel functions and will push each shell when the loading latch is open. One side of the grip removeable to add the CO2 cartridge which is tighten into place by a allen key and when tightened the Co2 cartridge is pierced to allow the Co2 into the gun. Note: As there is no hop-up system and the power output is limited, effective range is approx 20 metres.