What's wrong with this raycasting script?

I was trying to learn a bit with raycast on the wiki and for some reason this isn't working

local tool = script.Parent
local player = game:GetService("Players").LocalPlayer
 
tool.Equipped:connect(function(mouse)
	print("Tool equipped!")
 
	mouse.Button1Down:connect(function()
		print("Mouse pressed!")
		local ray = Ray.new(tool.Handle.CFrame.p, (mouse.Hit.p - tool.Handle.CFrame.p).unit * 300)
		local part, position = workspace:FindPartOnRay(ray, player.Character, false, true)
 
		local beam = Instance.new("Part", workspace)
		beam.BrickColor = BrickColor.new("Bright red")
		beam.FormFactor = "Custom"
		beam.Material = "Neon"
		beam.Transparency = 0.25
		beam.Anchored = true
		beam.Locked = true
		beam.CanCollide = false
 
		local distance = (tool.Handle.CFrame.p - position).magnitude
		beam.Size = Vector3.new(0.3, 0.3, distance)
		beam.CFrame = CFrame.new(tool.Handle.CFrame.p, position) * CFrame.new(0, 0, -distance / 2)
 
		game:GetService("Debris"):AddItem(beam, 0.1)
	end)
end)

I am getting one errors: 19:39:24.174 - Equipped is not a valid member of Part 19:39:24.175 - Script 'Players.Player1.Backpack.Gun.Handle.LocalScript', Line 4

You put your tool variable as the parent of your localscript, which is in the handle. Instead, your tool variable should be "script.parent.parent," or you should actually put your localscript directly into the gun tool.