I would like to remove the magwell from my new STI 2011 tactical 4.0. I've never done this before but I think I understand the concept. I believe I need to remove the magwell pin (which also acts as the mainspring housing pin) by tapping it out with a brass punch. With the slide off and the hammer down to remove the tension from the mainspring of course. I would then replace the magwell pin with a regular mainspring housing pin, which should be a bit shorter. Looks like I can get one at Dawson Precision (they only seem to have SS and since my gun is a blackout I really would like to have black). With the slide off and the hammer down, as long as I'm careful the mainspring housing should stay put and allow me to insert the mainspring housing pin. As to the grip, i'm really not sure if that has to come off or can it stay on as is? If I'm missing something or have something wrong in my description of how I believe it should work, please let me know. I feel like several/many people here have done this and I'd appreciate some guidance. Thanks!