How to fix ray casting delay?

Hello peoples. I am making a gun as I usually don't and I always run into the same problem, when running around or jumping, the ray is always like 3 or 4 studs away from the fire part of the gun. I have no idea how to fix this so any help is needed. Sorry for the short description. I'm not really sure what to say in this situation.

im just a scripting noob so plz help thx :D

This is the server script, the thing that shoots the ray: Just a little piece of it.

function fire(args)
	local gunInfo = getToolInfo(args[3])
	local ray = Ray.new(args[1].CFrame.Position, (args[2] - args[1].CFrame.Position).Unit * 300)
	local part, position = workspace:FindPartOnRayWithIgnoreList(ray, returnIgnoreList())
	local distance = (args[1].CFrame.Position - position).Magnitude
	local laser = Instance.new("Part")
	laser.Name = "Laser"
	laser.Size = Vector3.new(0.03, 0.03, distance)
	laser.CFrame = CFrame.new(args[1].CFrame.Position, position) * CFrame.new(0, 0, - distance/2)
	laser.BrickColor = BrickColor.new("Daisy orange")
	laser.Material = Enum.Material.Neon
	laser.Transparency = 0.35
	laser.CanCollide = false
	laser.CastShadow = false
	laser.Anchored = true
	laser.Parent = workspace.RayIgnore
	
	game:GetService("Debris"):AddItem(laser, 0.1)
end

And this is the client script, the thing that fires the event: Again, just a little piece.

function requestShot()
	registerShot:FireServer({tool:WaitForChild("FirePart"), mouse.Hit.Position, tool})
	requestAnimation("Recoil")
end

Any help is needed.