Does anyone here know how to make a gun with a model? I just cant seem to get it working!

Does anyone here know how to make a gun? Note that I am not using a tool and that it is a model that is welded to the players hand.

If you do know the please do tell me.

Thanks.

:D

Btw here's what I've done so far with my script

local Player = game.Players.LocalPlayer
local Chara = Player.Character
local Mouse = Player:GetMouse()
local Reloading = false
local FireEvent = script.Parent.FireEvent

function Reload()
        if Reloading == true then
            print("Broke")
            return
        end
        Reloading = true
        print("Reloading")
        local Ammo = script.Parent.Ammo
        local MaxAmmo = script.Parent.MaxAmmo
        local Sound = script.Parent.Handle1.Reload
        if Ammo.Value < MaxAmmo.Value then
            Sound:Play()
            wait(0.6)
            Sound:Stop()
            wait(2)
            Ammo.Value = MaxAmmo.Value
            Sound:Play()
        end
        wait(1)
        Reloading = false
end

function Fire()
    local Aim = Mouse.Hit
    local Ammo = script.Parent.Ammo
    local MaxAmmo = script.Parent.MaxAmmo
    if Ammo.Value == 0 then
        Reload()
        return
    end
    FireEvent:FireServer(Aim)
    print(Aim)
    print("Fire")
    local Sound = script.Parent.Handle1.Fire
    Sound:Play()
end

Mouse.KeyDown:connect(function(Key)
    if Key == "r" then
        Reload()
    end
end)

Mouse.Button1Down:connect(function(mou)
    Fire()
end)