i would get the hw45 i have owned one for a few months and love it i have only just brought a e9a .177 and e9a.22 but would never part with the hw45 put a red dot sight on it i can hit a pop bottle lid every time 10 to 15 metres you will love it also i know the 45 might cost a little more but not after owning it a few months you will soon make up the difference in co2 but both are good pistols