Many different accessories for the AR are on the market today. Rob Pincus has been testing a prototype of one he finds useful: the Foxbeard Aluminum Magazine Baseplate designed to fit on PMAGs. Why put an oversized baseplate on an AR magazine? If you have a malfunction and need to quickly remove the mag, the baseplate will help you pull the mag out. The baseplate also makes it easy to access the AR magazine from a carrier or pocket because you can hook your fingers on it to get a solid purchase on the mag.