I've owned a succession of Hi Powers since the '60s, to include an old ratty INGLIS, pre-T, T-series,C-series, '70 and '80 versions, MII, MKIIIs, GPs, etc. I have never owned one of the NAZI occupation versions that James K mentioned, but would share his concern about the safety and durability of those guns.I have shot my share of reloads that I'm sure would now be considered +P and/or +P+, as well as thousands of rounds of factory NATO, +P and +P+ once it came along. I did use the Wolff 18.5# recoil springs and/or buffers in some Hi Powers. But, I admit that I have not fired the many thousands of rounds through any ONE Hi Power that some have. The only thing I can recall breaking is one MKIII firing pin stop. I have little doubt that the Hi Power is not as durable as a Glock, or 1911 chambered in 9MM, etc. There's just more steel everywhere in the 1911 and they have proven to be capable of handling cartridges with quite a bit more power than the 9X19MM. The Glocks have obviously proven to be very durable pistols over the past 25 years..........ymmv