Why won't the player get a tool when they buy something with in game currency?

script.Parent.MouseButton1Click:connect(function()
 local RS = game:GetService("ReplicatedStorage")
 local item =  RS:WaitForChild("SubspaceGun")
 local price = 250 
 local player = game.Players.LocalPlayer
 local stats = player:WaitForChild("leaderstats")
 
 if stats.Cash.Value == price then
  stats.Cash.Value = stats.Cash.Value - price
  local cloned = item:Clone()
  local cloned2 = item:Clone()
  cloned2.Parent = player.Backpack
  cloned.Parent = player.StarterGear
 end
end)

Just so you know, because this is a local script, when a player buys something their cash wont actually be taken away, it'll be taken away on their client, but on the server they'll still have their Cash. You can use a RemoteEvent to fix this, just insert a RemoteEvent into ReplicatedStorage, and you can name it anything, just make sure if you rename it, rename 'RemoteEvent' to the name you've changed it to inside of the scripts.

Also another thing that I noticed is that you were checking if your Cash was equal to the price. Meaning that you had to have exactly 250 Cash to purchase the Tool, you can fix this with >=, which will check if your cash is either over or equal to the price.

Local Script:

script.Parent.MouseButton1Click:Connect(function()
	
	local rs = game:GetService("ReplicatedStorage")
	local item = rs:WaitForChild("SubspaceGun")
	local price = 250
	
	game.ReplicatedStorage.RemoteEvent:FireServer(item, price)
end)

Server Script:

game.ReplicatedStorage.RemoteEvent.OnServerEvent:Connect(function(Player, Item, Price)
	
	local Stats = Player:WaitForChild("leaderstats")
	
	if Stats.Cash.Value >= Price then
		Stats.Cash.Value = Stats.Cash.Value - Price
		local Cloned = Item:Clone()
		local Cloned2 = Item:Clone()
		Cloned.Parent = Player.Backpack
		Cloned2.Parent = Player.StarterGear
	end
end)

I've already tested this and it seems to be working fine for me, if it doesn't work for you for whatever reason, just post a comment and I'll try and help you.