User blog comment:JoeRamirez/Call of Duty Modern Warfare 3 Weapons Wishlist./@comment-69.123.219.166-20110515003231/@comment-356904-20110515211238

Except that Glocks need aftermarket parts to change calibers like that; no stock Glock is chambered in 7.92.

And if this is the case then all the 5.56mm guns should have the 6.8mm option.