Picked a couple up before the ban.
I may be wrong but I believe the standard issue mag to army men in Vietnam were 20 round mags. Seems a friend’s family had to buy and send the 30 round mags to him. The main issue was, you go full auto it wasn’t long till you were empty and standing in a pile of brass in the schittz. Guns and mags don’t kill people, nuts kill people. Unarmed people are who nuts kill. I may get killed by a nut but I’ll go down armed.