How would I fix my gun script?

I want to try making the gun script, automatic. But the problem is I don't know how to trigger it properly. Look down for examples.

Here's an brief-example of what I did so far:

mouse.Button1Down:connect(function()
	mouse.Button1Up:connect(function()
		game.ReplicatedStorage.ROBLOX_MP5FireEvent:FireServer(mouse.Hit.p)
	end)

Then here's my next one, it works fine but it shoots not automatic but pistol type. Where you have to spam click.

mouse.Button1Down:connect(function()
		game.ReplicatedStorage.ROBLOX_MP5FireEvent:FireServer(mouse.Hit.p)
	end)

Then what's the real fix to this?

Try to do with some variables. Like,

--This must be a LocalScript
local FireRate = 0.1
local on = false
local PL = game.Players.LocalPlayer
local MS = PL:GetMouse()
local MSPos = MS.Hit.p
local SEvent = game.ReaplicatedStorage.ROBLOX_MP5FireEvent
function Enable()
	on = true
end

function Disable()
	on = false
end

while on == true do
	wait(FireRate)
	SEvent:FireServer(MSPos)
end

PM me on ROBLOX and say me if it works (Loulou1112)

What you can do is make a variable and use renderstepped.

local fire = false

game:GetService.RunSerivce:RenderStepped:connect(function()
	if fire == true then
	  game.ReplicatedStorage.ROBLOX_MP5FireEvent:FireServer(mouse.Hit.p)
	end
end)

mouse.Button1Down:connect(function()
       fire = true
    end)
mouse.Button1Up:connect(function()
        fire = false
    end)

if this helped please accept :) ~KIHeros

Oh and if you want a firerate you can add a firerate variable

local fireRate = 0.2

--then make it wait the fireRate

if fire == true then
  wait(fireRate)
  game.ReplicatedStorage.ROBLOX_MP5FireEvent:FireServer(mouse.Hit.p)
end