Some of your upgrades are too overpowered, and you left out a good amount of exotics. Here are my ideas:
Universal remote: Just buff range and damage falloff.
No land beyond: Buff damage to that of efrideet's spear. Up reserve ammo to 40. Take away the requirement for reloading. (No reason you should have to. Its bolt action.) Improve the master perk, doubling precision damage dealt.
Monte Carlo: Up magazine size to 70
Hard light: Give maximum stability without the need to use perfect balance. Or at least improve the current stability. Even at maximum, its bloody hard to get a lot of headshots.
Red death: Take away unflinching and give it anything else.
4th horseman: Give it maximum reload in the form of a break barrel reload which reloads all 4 shots at once.
Super good advice: Improve stability.
UR: would not solve its being useless in PvE and would only make it slightly better in PvP. overall not the changes it needs.
NLB: already said to up the reserve ammo. bold actions rifles still have clips unless they are very old. the master brings it inline with low impact snipers currently in the game.
Monte Carlo: 100% balanced and doesn't need changes. just because you don't like High RoF auto rifles doesn't mean you get to cry till every auto rifle in Suros
hardlight: see Monte carlo
Red death: its 100% balanced and is the best exotic primary to take into the raid
4thHM: would just make it FV with faster reload. doesn't solve its problems
SGA nomatter who high you make the stability it doesn't solve the fact the only perk only works when your missing. that why it need a slight rework
Bolt action still have to reload, the bolt action "action" simply re-chambers the round. They could change the animation to show the character putting in another bullet or something(like that one cod aw bolt action)