Robert, there are zero functional and material difference Sir. Just the Country of manufacture difference. Glock has stated and proven that one is not better than the other. They are functionally and qualitatively identical. Some folks just prefer to have a Glock made in the original Country of manufacture, namely Austria. Cheers and stay safe!

The only difference between the Austrian made Glocks and the US made Glocks are only where their made other then that there is no difference in features or quality, the Austrian made glocks will say made in Austrian on the slide and have a "P " in the model number while the American made Glocks will say made in USA on the slide.