Offsetting a ray's position?

I'm working with third person guns that use raycasting, with a custom cursor UI that follows the mouse position, I am currently offsetting that cursor UI and I want to know how I can actually offset the ray's hit position to match it.

How I offset my cursor

local cursoroffset = UDim2.new(0,math.random(-75,75), 0, math.random(-75,75))

My ray

 local ray2 = Ray.new(char.Head.Position, (mouse.Hit.p - char.Head.Position).unit * 9999)