This is my primary carry weapon so this was a bad thing to have happen. I dropped it off at the gunsmith on the way home. I really like the gun and shoot it much better than my Glock, but I need to trust it! I normally check for kinks in the springs, loose screws and unusual wear marks. Now in my cleaning I will pay closer attention to "fixed parts" that you don't expect to fall off! With todays adhesives gluing and staking would seem to insure that the tube is firmly affixed to the frame. Is a "rare" problem for the 1911 or not?