...Glock and other synthetic frame pistols do have a weakness that is very specific to synthetic frames. They are vulnerable to impact damage to the frames. Honestly this is a very small deal as it's rare a pistol is taken out of action from impact damage, but it does happen on battlefields...
I have a very close friend that is a part time instructor for Clint Smith at Thunder Ranch and also a Krav Maga instructor (DocRocket knows him). He has "torn" the slide off of numerous Glocks doing "improvised baton" training (it's his "why you never use a Glock as a club" demonstration).
