Magpul has an established track record with buttstocks for the AR-15 so it is pretty easy to imagine that they could come up with a killer version of the pistol arm braces that are so popular right now. It is fine to let your imagination run wild with that idea for a bit but don’t hold your breath waiting for Magpul to drop a brace into the marketplace.
The following is a quote on M4C from Magpuls Director of Product Management and Marketing, Duane Liptak Jr.:
More braces and more opinion requests might just hasten an end to this whole market through an opinion reversal, which isn’t good for anyone, so we’ll likely steer clear of any products in this vein. I would prefer to see the ATF realize that this whole SBR thing is silly, as pointed out by the arm brace opinion, so that short barrels are no longer a determinant of NFA status. With all the more strict gun control in many, less free nations around the world, I’m not aware of anyone else that sees barrel length as something that needs to be controlled. It’s silly.
Kudos to Magpul for taking a sensible approach.