that gives me an idea.. so how about the 10 round legal magazine, but the have an opening (loading port in the side), but then you can buy a seperate device called an "auto loader".. that can attach to the weapon and holds many more bullets in it's "storage resevior", and it would be battery powered .. and as you spend one bullet it loads another one into the "capped mag" for you.. fort of like the auto feeders in paintball