What brand of Airsoft GBB pistol would be a nice and durable copy of the above ? Will be shot a lot doing point shoot training instead of the real steel pistol . Will be using Propane for gas and do not want a large grip Hi-Cap version that holds a lot of BB's . Standard grip size of an old 1911 is what I am looking for . Above all it must be durable and hold up to lots of shooting . Any suggestions on what to get or where to get it ?