Seeing your question made me curious. I read on another forum that Glock doesn't recommend them - something about collecting dirt/dust and not allowing it to fall free. Since I'm a Glock fan, I e-mailed them to confirm and will post back with what they say.
"You have enemies? Good. That means youve stood up for something, sometime in your life." - Winston Churchill
Suggested gun control movement talking point: "We're OK with guns to keep our families safe, we just don't want you to have them." - Joe
Last edited by jp_over; 03-30-2013 at 08:39 PM.