The concept is solid and well established on Ruger 10/22 magazines: couple a whole bunch of them together at the floorplate and rotate the contraption when the mag runs dry. But FAB Defense took things a step further, gluing five 10-round magazines to a central spoke to create a New York-legal 50-round arrangement. Well, as near as we can tell NY legal. I suppose you could do this with 30-round magazines as well, creating a 150-round hub and spoke contraption that would put Surefire’s MAG-100’s to shame. But that might be a little…less than ergonomic. Either way, God bless America and the ingenious bastards who live here. Retail price: $115 with mags included.