The one in the picture is a SRC SR-SP, which is practically a TM USP clone with a metal slide & support for co2 magazines. QC is a little iffy on them but they have awesome blowback and feel awesome to shoot, although just like my other (now broken) USP9 it struggles a lot in colder weather.
If you're keen on trades and want a better performer - the TM's a much better option but keep in mind it uses a plastic slide so if you'd want a metal one you'd have to track down a detonator or nova slide and have it fitted/fit it, and they're rare as hen's teeth & cost a fortune. The base TM is also a bit pricer than the other offers, and much much pricer if you're including the cost of a metal slide if you're so inclined.
If you want a metal slide, decent-enough performance and the trades the Umarex (OEM'd by VFC) USP9 is a neat enough option and was what I was using before it shit the bed and stopped working, and considering there's zero information on in anywhere I couldn't fix it, hence why I ended up with the SRC.
Second one down's the Umarex/VFC, top is the SRC. Also, a brand new WE P229 which I've just bought, which is lovely.