I read something on The Firearms Blog from 5 years ago about a Glock 17S that's not available to the public. I'm assuming it has a momentary push in safety on the rear slide cover for holstering the pistol. Does anyone have additional information about a 17S?
https://www.thefirearmblog.com/blog/2013/11/24/sure-draw-momentary-glock-safety/
https://www.thefirearmblog.com/blog/2013/11/24/sure-draw-momentary-glock-safety/