FE laser arm

Player = game.Players.LocalPlayer
if script.Parent.className~="HopperBin" then 
ma=Instance.new("HopperBin") 
ma.Name="[Laser Arm]" 
ma.Parent=Player.Backpack 
script.Parent=ma 
end 

local Selected = false 
local Shoot = true 
function Click(Target) 
if(Target.Target.Parent:findFirstChild("Humanoid")~=nil)then 
Target.Target.Parent:BreakJoints()
end 
local P = Instance.new("Part") 
P.Name = "Laser" 
local Place0 = Player.Character["Right Arm"].CFrame 
P.formFactor = 0 
P.Size = Vector3.new(1,1,(Place0.p - Target.Hit.p).magnitude) 
P.CFrame = CFrame.new((Place0.p + Target.Hit.p)/2,Place0.p) 
P.Parent = game.Workspace 
P.Color = Color3.new(0,0,1) 
P.Transparency = 0.5 
P.Reflectance = 0.5 
P.Anchored = true 
P.CanCollide = false 
local E = Instance.new("Explosion") 
E.Position = Target.Hit.p 
E.Parent = game.Workspace 
for i = 1,10 do 
P.Transparency = 0.5+(i*0.05) 
P.Reflectance = i*0.05 
wait(0.1) 
end 
P:Rremove() 
end 
function Select(Mouse) 
local Arm = Player.Character:findFirstChild("Right Arm") 
if(Arm==nil)then