IIRC...1980 vintage.

I carried mine daily on and off duty for most of a decade in Condition One using the factory ambidextrous safety. No incidents of any kind.Despite being full-sized, the slimness through the slide makes this gun very comfortable to use with an IWB holster. On the negative side, an extended safety is needed if the gun is to be carried in Condition One.
Like most things firearms, it'll work for some and not for others.I carried mine daily on and off duty for most of a decade in Condition One using the factory ambidextrous safety. No incidents of any kind.
Well, I'm 6'2" and 235 lbs and have never been touched by my stock hammer in 25 years and thousands of rounds.Apparently, my comment on hammer bite led some to assume that the problem is limited to corpulent shooters. I have average-sized and non-fleshy hands, yet, more correctly, I sometimes get pinched, rather than bitten, between the shank of the hammer and the tang. I estimate that a tang perhaps one eighth inch longer would have solved the issue for both large and average-sized shooters. The excellent ergonomics of the Hi-Power is such that the handgun will seat itself with the tang resting on the web of the hand during multiple shots.
Apparently, my comment on hammer bite led some to assume that the problem is limited to corpulent shooters. I have average-sized and non-fleshy hands, yet, more correctly, I sometimes get pinched, rather than bitten, between the shank of the hammer and the tang. I estimate that a tang perhaps one eighth inch longer would have solved the issue for both large and average-sized shooters. The excellent ergonomics of the Hi-Power is such that the handgun will seat itself with the tang resting on the web of the hand during multiple shots.