[fred cook]

There are also a couple of 50 round drum mags on the market. Pro-mag and Black Dog are a couple that come to mind. The earlier Pro-mag magazines had some feeding problems but they have come out with a second generation version that seems to work ok. The Black Dog mag looks to be well built, is easy to load and can be disassembled for cleaning. Why waste time changing mags when you could be busy popping caps?