A while back in my Plaxico Burress gets 2 years for being a dumbass blog entry I had this picture which detailed how Glock trigger lock thumb safety looks and works:
Well apparently this is only proof of concept, because in real life it appears Glock can’t make a gun with the lock on it that works reliably. Seems like a pretty simple modification, So much for perfection!
They had magazines randomly falling out of the guns, magazines refusing to drop out when the mag release was pressed, brass being ejected into the shooters face and just plain failing to cycle.
Read more about it at TheFirearmBlog where Steve has an interesting post on the Portuguese Police Glock Safety Saga – HERE