There have been some horror stories with many Gen 4 G-20 owners, some have sent theirs back to Glock, some opted for a 3gen G-20SF model to replace the gen 4's.
I personally shied away from the Gen4 product as they were not handling the higher impulsed ammo. The same ammo ran flawlessly through the G-20SF without a hiccup!
Glock need to research the problems using high impulse ammo like Underwood while using high speed cameras and playback in slow motion and study it closely!
Do some research!
NRA Life Member
BASS Life Member
Last edited by _The_Shadow; Today at 21:17..