Quote:
A few come immediately to mind that do not use J.M. Browning's locking system:
-Walther P38, using a locking block (Beretta copied it)
-HK P7/PSP - gas delayed blowback
-HK P9S roller lock, CZ 52 copied it
-DWM Parabellum pistol - toggle lock delayed blowback, first developed by Hiram Maxim
-HK VP 70 -direct blowback and the first "plastic" framed pistol
...and of course almost all rimfire and pistols up to .380 ACP. As far as I know, the CZ75 uses a modified Browning lock up and the barrel locks into the mating recesses in the slide, the barrel has to tilt down to allow the slide to move back.
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Andy, the HK P9S and CZ 52 are quite different. One is a roller delayed blowback and the other is a roller locked breech.