Originally Posted by Sniper03
The 6.8 SPC magazine is different than that of the 5.56. Also in most you will find a Blue Follower.
not for sure what the difference is, they are about the same size, but the makers of 5.56mm and 6.8mm rifles have different part numbers on the magazines. the 30rnd size in 5.56 and the same size mag in 6.8 holds 26 i think. so the magazine must be different in some way.