How to make a gun spread like in Phantom Forces?

Here's a picture. I want to make like when I click, it will not shoot in the perfect direction of my click, spreads out among the lines in the crossaim. Now I have this script:

mouse.Button1Down:Connect(function()
	canSprint = false
	
	if ammo == 0 or reloading == true then
		
		
	else

		local target = mouse.Target
		
		if target == nil then
			
			
		else
			
			local targetZombie = target.Parent:FindFirstChild("Zombie")
			
			if targetZombie then

			--And a lot more			

			end
		end
	
	end

end)

Here's the game link, if someone wants to try it out