K2 Prime Anti-materiel Rifle
Did you find that the standard K2 anti-materiel rifle was underpowered in the late game? If so, I recommend this mod.
This mod adds an upgraded anti-materiel rifle that unlocks late in the game. It has a range of 120, the same rate of fire, and grants a +300% damage bonus.
This can also be used with the non-Space Age version of Vanilla K2.