I've shot Sigs but prefer the HK guns. I have a USPf 9mm, USPc .40 and a p2000sk 9mm. If you are just going to use it for the range you'll have more fun and be more accurate with a full size version of the USP. I really like my .40 and use it as a carry gun in the winter as well. If I was only going to use it at the range I would want it to be a full size.