The Present Arms SP-2 Sentinel Plate and MP-AR15 Magazine Post Kit is an example of good ole American innovation. This kit allows you to work on your modern sporting rifle. This work station also doubles as a way to display and store your favorite firearms. Machined from super tough polymer, one side has a pocket for holding your tools and mags while the other side is flat for going into show off mode. This same SP-2 Sentinel Plate plugs and plays with your pick of interchangeable magaz