For the record, the Second Gen guns also have this feature, as on my 639. I don't mind the mag disconnect feature for a carry gun for the previously posted reasons. My 639 is not used as a carry gun but rather as a range/competition gun and the mag disconnect feature can be bothersome. Range rules require you to "dry fire" on an empty chamber before you bag or holster the gun. You must have an empty mag to insert into the gun to do this and then remove it prior to bag/holster. Just another step to remember. I would like to remove this feature form mine as it is not a carry weapon. My favorite gunsmith will not remove any factory "safety devise" as a matter of avoiding liability. He did "smooth" the trigger and action and install new sights with dovetails. Guess I need to find another 'smith for this work.