Great Video on Glock Generation 4 differences

I am posting this as a follow up to the earlier post I did that highlighted the differences and additions to the Glock Generation 4 over previous Glock models.  This is a series of videos I found on YouTube.  They are long and fairly boring, but they explain with good close up shots of every comparison and change with the Glock Generation 4.  Enjoy Glock Lovers!

Great Glock Generation 4 Vids