They were going to use a Glock 17 at first, but there were two problems.
It hadn't been produced yet.
And it caused problems with a line that they really wanted to use.

"Uh uh. I know what you're thinking. "Did he fire seventeen shots or only sixteen?" Well to tell you the truth in all this excitement I kinda lost track myself. But being this is a 9 mm, the most common handgun in the world and would likely penetrate your skull, you've gotta ask yourself one question: "Do I feel lucky?" Well, do ya, punk?"

Yea, it kinda looses some of the "punch"!

Best,
Rick