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.
I want high capacity rounds because when the country government is lost and the new faction comes to take my stuff, I want to be able to have the firepower to fight back. Basic 2nd Amendment 101, people.