I only post this because, had I known this earlier, it would have saved me a lot of trouble. Scenario: you're disassembling your HP pistol, and you've done all the prereq's: the mag is removed, the chamber is empty, the slide is locked back, and you've driven out the pin that holds the slide retainer. Before you lift the slide and take it apart: ... point it down into an empty box. You'll be able to find the flying parts much more easily* this way. * where "much more easily" means "find them, period"