The next two photos are out of order. After I cut off the excess I set it up in the vise and cut the edges of the AR grip mount to size. I put the block on a 30 degree angle block in the vise to cut the grip relief.



Then I place an AR grip over the mount and use a transfer punch to locate the screw hole. You can see the punch mark in the photo above.



With the block still sitting 30 degrees from the table I use an edge finder to center up my Y axis on the mount then use a wiggler to pick up the center punch mark from the transfer punch to set my X axis. Then it's just a simple drill and tap for the screw hole.



At this point I still need to decide what the final shape/contour in front of the magazine is going to be. Until then I won't know what I will be able to clamp on to cut the angled sides above the pistol grip.