Whats wrong with this weld script?

The gun I am welding won't appear on my characters right arm. This is a LocalScript in a hopperbin

player = game.Players.LocalPlayer

ra = player.Character:WaitForChild("Right Arm")

humanoid = player.Character.Humanoid

gun = game.Lighting.Flintlock

Tool = script.Parent

Tool.Selected:connect(function()
    gun:Clone()
    gun.Parent = script.Parent  
        local Weld = Instance.new("Weld")
        Weld.Part0 = ra
        Weld.C0 = ra.CFrame:inverse()
        Weld.Part1 = script.Parent.Flintlock
        Weld.C1 = script.Parent.Flintlock.CFrame:inverse()
        Weld.Parent = script.Parent.Flintlock
        script.Parent.Flintlock.CFrame = ra.CFrame * CFrame.new(0,0,-1)
        script.Parent.Flintlock.Anchored = false
end)