Re: The HK USP ?
I'm one of the HK addicts and love them. It seems to be a love or hate thing as lots of people are huge fans of HK pistols and then there are those that dislike them.
In getting a HK Pistol, here would be my suggestions:
Mark 23:
Big Bulky Huge and totally flashy. It's a great collectors item and probably the pistol to choose if your life depended on it. But it's huge, it was a bit of an oddity, as it was a sidearm that was made to be a primary weapon (when fitted out with a silencer and the Laser / light module it feels like a small rifle). The grips on it are huge and you have to have big hands to hold it. Not really a good carry pistol, more for collectors or if you plan to be carrying something while you scuba dive at night in unfriendly waters.
USP 45 Elite:
This is what I would recomend instead of the Mark 23, also a bit of a rare bird, but cheaper than the mark 23 and easier to hold, designed as a target pistol with an extra long barrel and a really good trigger.
HK45:
The latest model, much better grips, and with the optional factory extended, threaded barrel, a perfect highly accurate all around pistol, a bit on the larger side. There is a HK45c that is better for concealed carry but doesn't have the same grips.
P30:
9mm and .40
Latest models with adjustable backstraps and side grip panels
The USP series (available in .45, .40, 9mm and some in .357) are the older models that are a bit more blocky but great deals can be found on them.
The main Trigger options on the newer HK45/P30 are:
DA/SA with Safety (usually has decocker)
DA/SA with No Safety (usually has decocker)
LEM (basically modified DA only, normally no decocker)
Light LEM (Basically modified DA only but 4.5lb pull, normally no decocker)
Some of the LEM versions also have Safeties on them.
The triggers take a bit of getting used to. There are a few good smiths that can make the trigger way better if you want to spend the money.
Current HK customer service is much improved, but don't expect any hand holding or extra gentle care.
The older USP series lend themselves to almost endless amounts of mods for all kinds of different trigger mods and options, the newer ones have a bit less options on that, but are catching up.