How would I make this filtering enabled?

I have a gun that uses Raycasting but I'm not sure how to actually make it filtering. I've tried to but when I reference the Gun's handle in one of the arguments for FireServer() the output gave error that just said Handle is not a valid member of Player

Is there any other way I could make the gun tool filtering? Or is there any way to bypass this error.

If you would like to see my scripts, here is the script that is on the server-side.

local function GunRemoteFired(tool, Calcuation, Character)

    local ray = Ray.new(tool.BulletFire.CFrame.p, Calcuation)
    local part, position = game.Workspace:FindPartOnRay(ray, Character, false, true)

    local beam = Instance.new("Part", workspace)
    beam.BrickColor = BrickColor.new("New Yeller")
    beam.FormFactor = "Custom"
    beam.Material = "Neon"

    beam.Transparency = 0.25
    beam.Anchored = true
    beam.Locked = true
    beam.CanCollide = false

    local distance = (tool.BulletFire.CFrame.p - position).magnitude
    beam.Size = Vector3.new(0.3, 0.3, distance)
    beam.CFrame = CFrame.new(tool.BulletFire.CFrame.p, position) * CFrame.new(0, 0, -distance / 2)

    game:GetService("Debris"):AddItem(beam, 0.16)
    if part then
        local humanoid = part.Parent:FindFirstChild("Humanoid")
        local player
        if not humanoid then
            humanoid = part.Parent.Parent:FindFirstChild("Humanoid")
        end
        if humanoid then
            player = game.Players:GetPlayerFromCharacter(part.Parent)
            if player.Team == game.Teams.Zombies then
                humanoid:TakeDamage(35)
            end
        end
    end
end

Here is the cilent-side script.

local function Shoot()
    if debounce > 0 and IsActive and player.Character.Humanoid.Health > 0 and player.Team == game.Teams.Survivors then  
        RemoteEvent:FireServer(tool.Handle, (Mouse.Hit.p - tool.Handle.BulletFire.CFrame.p).unit * 300, player.Character)
        debounce = debounce - 1
        GunGUI.TextLabel.Text = preSetStringGuiText..debounce.." / "..maxAmmo
    elseif debounce == 0 then
        ReloadSound:Play()
        mouseEvent:Disconnect()
        ReloadAnimation:Play()
        GunGUI.TextLabel.Text = preSetStringGuiTextReload
        for i = 1, 3 do
            GunGUI.TextLabel.Text = GunGUI.TextLabel.Text.."."
            wait(reloadTime / 3)
        end
        mouseEvent = Mouse.Button1Down:Connect(Shoot)
        debounce = maxAmmo
        GunGUI.TextLabel.Text = preSetStringGuiText..debounce.." / "..maxAmmo
    end
end
--debounce is basically just a numbered value that resets if it is 0. 

Thanks for viewing this!