CriticalIncrease stat..

[_____________arsiine]

Hi,
My low light scope says CriticalIncrease 9 as one of the stats. What exactly does this mean? does it mean a weapon 1-2(3) is actually 1-2(12) with this installed? or does it mean my chances of getting a crittical hit is increased by 9% or what? Thanks in advance

-Arsine<---blind man with a targetting scope.

[____________Nutbar03]

Your chance to land a critical hit is increased by 9%.