Can anyone help me with this?

I made a decent gun with animations but the only problem is the equipped animation. I'm trying to stop playing it when the player unequips the weapon. Here's the main parts of the script that I'm having problems with.

local plr = game:GetService("Players").LocalPlayer
local character = plr.CharacterAdded:wait()

gun.Equipped:connect(function(gunstarts)
    equip = true
    gun:WaitForChild("GunGUI"):Clone().Parent = plr.PlayerGui
    plr.PlayerGui:FindFirstChild("GunGUI"):FindFirstChild("Frame"):FindFirstChild("Title").Text = gun.Name
    while true do
        plr.PlayerGui:FindFirstChild("GunGUI"):FindFirstChild("Frame"):FindFirstChild("MainText").Text = ammo.."/"..maxammo
        wait()
        if shooting == false and equip == true and isreloading == false then
            repeat
        character:FindFirstChild("Humanoid"):LoadAnimation(handle:WaitForChild("HoldAnim")):Play()
            wait(.001)
            until shooting == true or equip == false or isreloading == true
        end 
    end
end)    

gun.Unequipped:connect(function(gunstops)
    equip = false
    plr.PlayerGui:FindFirstChild("GunGUI"):remove()

end)    

Everything else works, nothing in the output. The animation just won't stop playing. Help?