I just bought one a couple weeks ago and haven't sent it in yet and probably won't until a majority have been sent back to their owners. I am curious if anyone else has done the same or have had any problems before recall? I am reluctant to carry with one in the pipe but since the recall is voluntary and they say it's very rare an unsafe condition would exist I just may go for it. I haven't even shot the darn thing yet. Haven't had the time or extra ammo. Anyway here is an article on the upgrade and it seems very positive,