NSV has some service issue as far as what is there in news. Moreover when you shift to NATO system like recent RCWS for IN & CG, you can't mount the NSV on those. So better to switch to the parent weapon system. On top of that, a loaded NSV is way heavier then a M2.Does not make sense to have two production lines for HMG. oFB manufactures NSV already. Can someone shed some light on this?