Why does weapon change between a localscript and a serverscript?

So, I am making a shop and that when you press the button in a gui, it sends a remote event to a server with the player, the character, and the weapon the player wants to buy. However, in the local script, weapon = GoldSword which is what I want it to but when it goes to the server script it equals the player. Why is this?

The localscript

local plr = game.Players.LocalPlayer
local char = plr.Character
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Purchase = ReplicatedStorage:WaitForChild("PurchaseWeapon")
local Weapon = script.Parent.Tool.Value




function leftClick()
    print(Weapon)
    game.ReplicatedStorage:FindFirstChild("PurchaseWeapon"):FireServer(char, plr, Weapon)
end

function onTouchTap()
    game.ReplicatedStorage:FindFirstChild("PurchaseWeapon"):FireServer(char, plr, Weapon)
end

script.Parent.MouseButton1Click:Connect(leftClick)
script.Parent.TouchTap:Connect(onTouchTap)

Serverscript

game.ReplicatedStorage.PurchaseWeapon.OnServerEvent:Connect(function(plr,char,Weapon)
    local Cost = Weapon.Price.Value

    if Cost > plr.Gold.Value or plr.Backpack:FindFirstChild(Weapon) or char:FindFirstChild(Weapon) then
        plr.Gold.Value = plr.Gold.Value
    else
        plr.Gold.Value = plr.Gold.Value - Cost
        Weapon:Clone().Parent = plr.Backpack
    end
end)