I figured it out. On the Mag-well/mainspring housing, in order to remove the extended mag-well you must first remove the allan screw, then using a punch remove the mainspring housing pin. Take a rubber-band and rap it around the grip and grip safety(This will prevent any parts coming out of alignment. Pull on the mainspring housing just enough to create a 1cm gap. The extension fits in the mainspring housing via Dove-Tail. Tap gently with a nylon capped hammer or rubber malet on the back of the extension (The rounded part) and it should pop out. Now knowing this and hindsight being 20/20, I would have bought the Wilson Combat model, part#366BF "Speed-Chute". With this type you remove the mainspring housing pin ONLY. Plus with the one I have (Kimber/Ed Brown) the recess where the Dove-Tail is leaves a gap that could potentialy get caught on clothing or allow dirt or other crap in where it should not be. Thanks to all that replied and I hope this info I've provided helps others.