According to most glockers (especially on their forum), Moses brought a Glock down from the mountain and any thought of changing any part of it is blasphemous. Glock advertises the G34 (9mm) and G35 (40cal) as "competition" pistols. They're not! What the G34 is, in my opinion, is a great platform on which to build a customized target pistol. Here's my recently completed project: Specs available if your interested, just didn't want to bore you if no one cares. I love the gun. It handles like a dream and is more accurate than I am.