I used to run the armory at a US Army base in the South in 2008. I had 150 M-4's and 150 M-9's. M-9's were fired about 150 rounds per week by students.
Problems I saw with the M-9:
Barrel locking lug broken
Barrel split
Frame cracked in one or more places
Slide cracked
Trigger spring broken
Takedown lever spring broken
Sights fell off
Right side safety lever broken off
Firing pin stuck in forward position
Various parts falling off of frame when you took off the slide
Grip screws stripped
I own one because I train military folks with it.
I was issued one as a sheriff's deputy in the early 1990's.
It shoots fine, but it can break and be rendered inoperative in so many ways.
Problems I saw with the M-9:
Barrel locking lug broken
Barrel split
Frame cracked in one or more places
Slide cracked
Trigger spring broken
Takedown lever spring broken
Sights fell off
Right side safety lever broken off
Firing pin stuck in forward position
Various parts falling off of frame when you took off the slide
Grip screws stripped
I own one because I train military folks with it.
I was issued one as a sheriff's deputy in the early 1990's.
It shoots fine, but it can break and be rendered inoperative in so many ways.