My son called and said he had several FTF hiccups with his 27.
It's fairly new 5-600 rds. Remington ammo (all I know). Had a couple with an old box as well as with a new box.
Firing pin marked the primer but didn't fire. He was able to extract bullet by moving the frame backwards.
He thinks its the firing pin, I'm thinking the ammo?
He's going to bring it over for me to look at before he sends it in to glock.
I'm thinking of trying another brand of ammo.
What else should I look for besides a through cleaning? (Can't be that dirty? ) it doesn't happen everytime which makes me think ammo.