The bodies are 7 rounders. Beowulf. 5/7
yes, which is essentially the same size as a 20 round 5.56 mag. My mistake. If we really want to split hairs, these are in fact, 100%, 30 Round USGI bodies, that are cut down to hold 7 rounds of .50 Beowulf.
Or, they're not cut down, but the 30 round dies have been shortened, or, maybe they're simply not putting as large a piece of metal into the stamping.
My point was, if you stick a ranger plate on the bottom, it has the functionality of a 30rnd body magazine in size/proportions.
Of course, what I don't know, is if the floor plate length is the same. I guess it's possible from looking at the angle they've cut it on, that it's in fact longer than the normal floor plate dimensions, in which case, the USGI extentions won't fit. I'd find that strange though, as, the box dimensions if sectioned correctly, would have the same floor plate dimensions.....
I'm sure someone will try it once they have them.