To remove the grip take out the bottom bolt with a 5mm hex wrench. Then push down on the tab in the front of the frame. It is the furthest thing forward in the reciever, you just stick your finger in there and push down.
Things it does
The grip holds the right saftey still so that it does not wobble, it holds the slide latch on, and it keeps the barrel nut from falling out.
Front latch ridges burned into the side so as to stop wobble.
Filing the bottom sharp corners so it is more comfortable in your hand.
More comming soon. As well as instructions, pictures, and diagrams.