The INSAS is Kalishnikov-reliable and chambered for the now very common 5,56mm ammunition of the M16, also now available to the Nepalese, and much lighter than the 7,62 NATO rounds used in the previous 1A1 SLRs. But I suspect that rifles of the INSAS pattern will also prove in the long run to be far less fragile in the hands of the Nepalese Army and AFP than the maintenance-dependent M16.
As for the Charlie-Gee AT gun, it's also simple and reliable, and its ammunition is much less expensive than the guided antitank missles that have generally replaced it. And both white phosphorous and canister ammunition is also available for the Charlie Guts-ache, one reason it's also in use by US Ranger units.
Rangers from the 1st Ranger Bn, Bravo Company conduct a nightime live fire raid. The Carl Gustav 84mm Recoiless Rifle is supporting the Rangers up on the objective. The weapon system serves Rangers in the direct fire support role and can be used for antitank duty, destroying reinforced positions and bunkers. Routinely conducting night time live fire exercises help the Ranger Battalions keep their edge and is another reason that when it comes to combat, Rangers own the night.