My plan is to be able to have a shop GUI and an inventory GUI. But, I don't want the person to have 2+ knives: the default knife + the boughten ones. I also need to do this with the gun.

Here is the code I use to give the killer and the sheriff their weapons. 

			local backpack = player:FindFirstChild("Backpack")
			if backpack then
				if player == bloxxer then
					local sword = serverstorage:WaitForChild("Sword"):clone()
					sword.Parent = backpack
					event:FireClient(player, "Class", "Bloxxer")

					local mydata = playerdata[player.userId]
					if mydata and mydata.emeraldsword == 1 then
						local emeraldswordvalue = sword:FindFirstChild("EmeraldSword")
						if emeraldswordvalue then
							emeraldswordvalue.Value = true
						end
					end

				elseif player == sheriff then
					local netgun = serverstorage:WaitForChild("Gun"):clone()
					netgun.Parent = backpack
					event:FireClient(player, "Class", "Sheriff")
				else
					event:FireClient(player, "Class", "Bystander")
				end
			end
		end
	end
end
spawnsmodel:remove()

Any help would be great.

Anonymous