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When the apocalypse arrives, I will increase the chance of survival by carrying a Mark 23 (primary) and USP45FS (secondary).
They are reliable. Overall clunky and large by today’s standards, especiallly the USP design. They could do so much better. It is mind boggling why folks keep giving them a pass. Look how aggressive and regular Walther has brought out products! Hope they come around, they need something new. Of course there are those that will say “ just give me another clunky expert...”
I once had to send in a USP9 that had an issue where the hammer would fail to reset. Another issue is that the first shot I ever took with my USP9 Compact resulted in a jam, although it never jammed again after that, so I suspect it was in its break in period. A P30L in .40 that I owned briefly didn't have any issues when I shot it, but the next owner complained about jams; I suspect limpwristing, but it could have been a break in period issue too. I own and have owned other HK's that never had a hiccup. Only one trip back to the factory out of the ten or so HKs I've owned is very good. The fact that they tend to have a break in period is not great (Glocks don't), but it's just something you learn to live with. I trust HKs, Glocks and CZs the most of any handguns I've owned, in no particular order.
As I was filling out the paperwork for my second Mark 23, the LGS employee asked "Why do you like this HK stuff so much?" I looked up and asked him, "Every manufacturer has made a bad model gun. Name a bad gun made by HK."
I kid you not, he told me "Well, that squeeze-cocker thing was kind of stupid." I was like WTF! Clueless.