The Mako Group has come up with a magazine that will get the attention of anti-gun politicians. It is not the most practical magazine but it is legal.
The Pentagon AR-15 magazine is a coupler that connects 5 separate 10 round magazines. A video from the Mako group at Shot Show makes it clear that the magazine is in response to the ban on high capacity magazines. It is specifically meant to grab the attention of Nacey Pelosi and other anti-gun politicians.
This product will run you $67.99, which includes the coupler and five magazines. It is compatible with the M16, AR-15, and M4. Most importantly, it is legal in all 50 states!