I think the whole Infantry should standardize on 7.62*51 mm round only. The frontline troops have already being issued with Sigs with a total of 1.44 L coming in. This concept of frontline vs. non-frontline was done during Bipin Rawat was CDS, to save cost from importing a lot of rifles from abroad. However, with the repeat order of 72K and AK-203 deal in limbo, this frontline vs. non-frontline concept should be abolished. It will be a logistical nightmare, since we are already considering building up conventional forces against China, and troops are gradually getting de-inducted from C&I with CRPFs stepping in to fill that role.