Can the USP Full Size share magazines with the USP Compact, and vice versa?
No. One of the biggest complaints about the USP was its bulk. When HK made the Compact variant, they had to slim down the frame to make the gun more manageable. Unfortunately this made the Compact too slim to use the magazines from its bigger brother. ***USP Compact magazines are made of metal, USP Full Size magazines are made of polymer, except for the .45 caliber, it uses metal magazines.
I have heard horror stories about HK customer service being terrible, is this true?
No. It is largely internet rumor. I have contacted HK CS on several occasions and have always gotten prompt, respectful, and knowledgeable service. HK improved its service department several years ago, and you have nothing to worry about. Pardon me for getting too optimistic, but the odds that you will ever even need HK CS are slim to none.
How reliable is the USP series?
USP pistols (and HK firearms in general) are known for their reliability. The USP is one of the most reliable pistols on the planet. It was originally designed around the .40SW cartridge, so 9mm USP pistols are naturally “overbuilt”. They are a little large, but are built like tanks. The .45 USP is scaled up in every way, and is very durable, even with +P and +P+ ammo, though HK doesn’t recommend you use it often. I have personally owned 7 HK pistols in varying conditions, ages, and levels of prior usage, and NONE of them have ever had a malfunction. Not a single one. Each gun saw at least 1000 rounds during my time of ownership. I have every bit of faith in my USP’s as reliable defensive weapons.
So you got your USP, now what?
Help, my USP shoots to the left, is it inaccurate?
No. No offense, but its you, not the gun. These pistols are mechanically more accurate than you or I can probably shoot them. The USP series is not known for its stellar triggers. The DA trigger is long and heavy, and the SA trigger is much better, but still nothing award winning. Almost every new HK shooter I have known (including myself) was shooting low and left when they first got their gun. Learn to master the trigger, and this should quickly go away. If you cant afford to shoot through all your ammo to practice, buy a snap cap and use it for dry fire practice. Before you know it you’ll be shooting the center out of the target.
My USP shoots low, what the hell?
When shooting the USP, position the front sight ON TOP OF your target, rather than just below it. In other words, cover up the bullseye with the front sight, and fire. This is how the USP is designed to be shot. If you use the “pumpkin on a post” method of aiming (bullseye ‘resting’ on top of the front sight) you will shoot low.
I want a light for my USP, where can I find one?
The USP has a proprietary rail that can only accommodate the HK M2 UTL light. (Typically $100-150) While the UTL is a decent light, there are better designs available. In order to use non-HK specific lights, you need to get a picatinny rail adapter. There are a couple different variations that come with varying price tags. The GG&G adapter is the best, but it is also the most expensive. All of them will work, however, just make sure you aren’t buying an airsoft part.
Holsters. Where do I start?
Depends. If youre going to carry it, get yourself a good in-waistband holster, like one from Milt Sparks or Bianchi. If you want a hip holster, look into the Serpa series from Blackhawk , or a Safariland holster. If you want a thigh holster, Safariland makes the best ones. Holsters could be discussed for hours on end, check the holster section of this site for more info than what I could ever hope to provide.
I’m sure I am missing something, but that is a basic rundown of information that you as a potential USP owner or new USP owner should need. I will update this as I think of more pertinent information, and I’m sure than other members will chime in as well. Overall, the USP series is one of the finest handguns available on today’s market, and there is probably at least one variant that fits your need. Get your hands on a USP, I’m almost positive you’ll come to appreciate them as I have.
Some HK’s for your viewing pleasure:
Here's another review of a gun that doesnt get much attention on the web, the FNH FS2000