I hate to hijack the thread guys but I need to address the GLOCK trigger spring concern. The GLOCK is the only handgun that can fire WITHOUT the trigger spring. It does require that you've been practicing your trigger control though. When the trigger is released after firing you can let it out just enough for it to reset and then fire again. This can occur with the trigger spring REMOVED from the weapon. Don't believe me? Go home and try it. Take out the trigger spring and dry fire it a few times. Remember, release the trigger just enough for it to reset.
As long as you do your part, a broken trigger spring will not take you out of the fight.
Again, sorry for hijacking the thread.