Let me make sure I understand all this correctly-are the 6.5, 6.8 and 7.62x39 mags are the same, but with different followers? Are the followers physically different, or just different colors? This would greatly simplify logistics-I am anxiously awaiting the 6.5, and I will definitely get a 7.62 for cheap ammo. I have been facing temptation to get a 6.8 in the meantime, and it would make the decision a whole lot easier if the investment in magazines could also be used for the other two as well. Even if the followers needed to be changed, I could have three times as many mags with just a small investment in different followers for each caliber.