Thanks for the reply. I am puzzled how can we “de-cock” without the button on the slide? Also, can we treat the “dead trigger” as a safety feature (because there is no trigger safety on P99)?The de-cocker still works and the DA won't work, so if you de-cock this combination, you'll wind up with a 'dead' trigger. You'd have to move the slide rearward about 3/8" (if you listen closely, you hear a click, that's the single action sear popping up in front of the striker) and back into battery to reset the striker.
See post #8.You can purchase a "Walther Arms 2834758 Q5 Match Upper Conversion 5" Black Tenifer Steel" slide that will mount on With Any standard size Polymer PPQ 9mm frame. Do you think this means you can also mount it on the P99 frame?
I prefer the paddle mag release of the P99. I also happen to own a P99 but not a PPQ. I think it would be great to have the option of adding a 5" Q5 slide on it.