Most everyone knows the problem with 7.62x39 ARs is the mags. The mag well forces the mag into a sharp curve in order to hold 30 rounds, which effects reliability. Why don't they figure out the max number of rounds the mag will hold (22, 25, whatever) without the mag curving to that point? I'm guessing they would even fit nicely in M4 mag pouches. I know I would be on a 7.62x39 upper for my SBR lower like a hobo on a ham sandwich if they would resolve the mag issues. I think a 20-something round 7.62x39 PMag in a 11.5-12.5" SBR would freakin' rock. Am I the only one who would be interested in something like that?

Any ideas why none of the mag companies has given it a try?