My Tool Welding Script which should automatically weld is broken?

The Problem is: The script doesn't weld the tool, but I have seen it work before, it 's just not working for me, it doesn't weld and it doesn't let the player use it, so the player doesn't hold it, it just falls through the ground where I make it :( I have a very, very, basic tool, consisting of 6 parts, the reason I don't want to make it too complex is because, I want to learn how to script my own gun, so Im using designs that aren't too complex. (I have made and developed more complex tools with over 200 parts) but I used a free script to help me (yeah, I'm quite a new scripter), The first part im aware of to making a usable tool (its meant to be a gun, I'm working on a game) is to start with welding and slowly get into more difficult scripts. Here is the script;

local Gun = script.Parent

local Handle = Gun:WaitForChild("Handle")
local INSERT = table.insert
local Parts = {}
spawn(function()
	for _,v in pairs(Gun:GetChildren()) do
		if v:IsA("BasePart") and v ~= Handle then
			if v:FindFirstChild("MainWeld") then v.MainWeld:Destroy() end
			if (not v:FindFirstChild("WeldCF")) then
				local WeldCF = Instance.new("CFrameValue")
				WeldCF.Name = "WeldCF"
				WeldCF.Value = Handle.CFrame:toObjectSpace(v.CFrame)
				WeldCF.Parent = v
			end
			INSERT(Parts, {Obj = v, Weld = nil})
			v.Anchored = false	
		end
		Handle.Anchored = false
	end
end)

The parts inside the tool are as follows: A normal script - "WeldTest" A part, used as handle or hold part - "Handle" A normal Part - "P1" A normal Part - "P2" A normal Part - "P3" A normal Part - "P4" A normal Part - "P5" thank to help
EDIT:

local akm = workspace.AKM

function Weld(A, B)
	for i,v in pairs(A:GetChildren()) do
		if v:IsA("BasePart") then
			if v ~= B then
				local weld = Instance.new("Weld")
				weld.Part0 = B
				weld.C0 = B.CFrame:inverse()
				weld.Part1 =  v
				weld.C1 = v.CFrame:inverse()
				weld.Name = v.Name
				weld.Parent = B
			end
		end
	end
end

akm.Handle.Anchored = true
Weld(akm, akm.Handle)  
--Use this script instead :)