I too have multiple handguns in various cartridges, but do not own a Glock. I have always believed they are too expensive for a plastic gun, especially given that you will have to change the trigger and the sights to make it functional.
That would likely come as a huge surprise to the 20 million or so Glock owners out there.... I would hazard a guess that at least 90% of them never modify them at all... I have done nothing to mine, and it is most assuredly fully functional.
Glock's reputation is that it is one of the most reliable handguns ever made, in stock form.... your statement makes little sense to me.... can you elaborate on why I need to change the trigger and sights? Curiosity, and all that.....