I now have the capability of building grips with the Wilson Combat Magazine speed shoot installed. When the accessory is attached the grip panels have to be relieved a little so they will lay flat on the frame. I ordered one of these to put on my Springer, it works great. If any of you want to know how I mark the area to be relieved, just contact me, I will be more than happy to walk you thru it.
Here is a picture of the part and the link to order.