MK-19 auto grenade launcher. These ASV's are great as long as you don't burn through all your ammo before realizing its time to reload.
Reloading a dry weapon has to be done outside the turret, because there isn't room inside to do that!
Oh well, almost perfect.
I like the part that states they only lost three, all of which were back in service within a week!
Thanks for the info, guys.