The Mak also has a few "parts" that are actually assemblies rather than individual parts--the trigger bar is one, the frame/barrel assembly is another. And I believe the frame of the VP70 is counted as a single part even though it's actually assembled from more than one part.Glock actually counts the trigger assembly as one part but look how many parts are really there.
S&W 547 K-frame revolver
The Glock G-17/19 handguns are good, but the Glock trigger mechanism is hardly simple.