How do I prevent tools from disappearing from the player's backpack after death?

I created a shop that sold guns, and it all worked fine. The thing is, when the player dies, they lose all the guns that they bought, and only the starter gun remains in their inventory.

Here's my LocalScript inside of one of the guns:

game.Players.LocalPlayer.Backpack.ChildAdded:Connect(function()
	local MaxAmmo = 40
	local Ammo = MaxAmmo
	local character = game.Players.LocalPlayer.Character
	local function createBullet()
		local bulletPart = workspace.bullet:Clone()
		bulletPart.Parent = workspace
		bulletPart.Position = script.Parent.Handle.Part.Position
		bulletPart.Orientation = bulletPart.Orientation + (script.Parent.Handle.Orientation - Vector3.new(0,90,0))
		for i = 0,25,10 do
			bulletPart.CFrame = bulletPart.CFrame * CFrame.new(0,0,i)
			wait()
		end
		bulletPart:remove()
	end
	
	local player = game.Players.LocalPlayer or game.Players.PlayerAdded:Wait()
	while not character do
		character.AncestryChanged:Wait()
	end
	
	local hum = character:WaitForChild('Humanoid')
	local reloadAnim = hum:LoadAnimation(script.Parent.Animation)
	local fireAnim = hum:LoadAnimation(script.Parent.fire)
	
	script.Parent:WaitForChild('MaxAmmo').Value = MaxAmmo
	script.Parent:WaitForChild('Ammo').Value = Ammo
	
	local canDamage = true
	local Reloading = false
	local uis = game:GetService("UserInputService")
	
	script.Parent.Equipped:Connect(function()
		uis.MouseIconEnabled = true
		game.Players.LocalPlayer:GetMouse().Icon = 'rbxassetid://68308747'
	end)
	script.Parent.Unequipped:Connect(function()
		uis.MouseIconEnabled = false
		game.Players.LocalPlayer:GetMouse().Icon = 'rbxassetid://442141180'
	end)
	
	local canFire = true
	local isDamaging = false
	
	script.Parent.Activated:Connect(function()
		canFire = true
		if Ammo > 0 and not Reloading then
			while canFire == true do
				isDamaging = true
				script.Parent.Handle.fire:Play()
				fireAnim:Play()
				Ammo = Ammo - 1
				script.Parent.Handle.BillboardGui.Frame.TextLabel.Text = Ammo.." / "..MaxAmmo
				script.Parent.Handle.Part.FrontFlash.Transparency = 0
				script.Parent.Handle.Part.BackFlash.Transparency = 0
				wait()
				script.Parent.Handle.Part.FrontFlash.Transparency = 1
				script.Parent.Handle.Part.BackFlash.Transparency = 1
				createBullet()
				if Ammo <= 0 then
					canFire = false
				end
			end
			while true do
				if isDamaging == true then
					game.Players.LocalPlayer:GetMouse().Target.Parent:WaitForChild('EnemyHum'):TakeDamage(6)
				end
				wait(.1)
			end
		elseif Reloading == false then
			uis.InputBegan:Connect(function(keyCode)
				if keyCode.keyCode == Enum.KeyCode.R then
					if Reloading == false then
						if Ammo <= 0 then
							reloadAnim:Play()
							Reloading = true
							script.Parent.Handle.reload:Play()
							wait(script.Parent.Handle.reload.TimeLength)
							script.Parent.Handle.BillboardGui.Frame.TextLabel.Text = "40 / 40"
							Ammo = MaxAmmo
							Reloading = false
						end
					end
				end
			end)
		end
	end)
	script.Parent.Unequipped:Connect(function()
		isDamaging = false
		canDamage = false
		canFire = false
		Reloading = false
		script.Parent.Handle.reload:Stop()
		reloadAnim:Stop()
	end)
	script.Parent.Deactivated:Connect(function()
		isDamaging = false
		canFire = false
	end)
end)

Yes, this is long and I'm very sorry for that. I really need answers though, because I want this game out as soon as possible.

**

Hello,

The problem is not with the script in the gun, but with the script in the shop. One thing you can do to solve that is when you clone the gun part to the backpack of the player, you will need to also clone it to the starter gear, thus the item will persist when your player dies:

local gun1 = game.ServerStorage.gun:Clone()
local gun2 = game.ServerStorage.gun:Clone()

gun1.Parent = player:FindFirstChild("Backpack")
gun2.Parent = player:FindFirstChild("StarterGear")

Sorry, I forgot to mention that you will need to create another global script in the server script storage like that:

game.Players.PlayerAdded:Connect(function(plr)
	local StarterGear = Instance.new("Folder")
	StarterGear.Name = "StarterGear"
	StarterGear.Parent = plr
	
	plr.CharacterAdded:connect(function()
		local startItems = StarterGear:GetChildren()
		for i=0,#startItems do
			local itemToClone = startItems[i]:Clone()
			itemToClone.Parent = plr.Backpack
		end	
	end)	
end)