Raycast not working?

[simplyjustbased]

Probably doing something wrong but
ill aim at the same area, sometimes it will work othertimes it just wont for some reason
like the ray will be invalid / nil for some reason idk
Client Script

repeat task.wait() until game:IsLoaded() and script.Parent:FindFirstChild("Remotes")

-- Variables
local Player = game:GetService('Players').LocalPlayer
local UserInputService = game:GetService("UserInputService")
local RunService = game:GetService("RunService")
local Ts = game:GetService("TweenService")
local Debris = game:GetService("Debris")

local Tool = script.Parent
local RemotesFolder = Tool.Remotes
local RSRemotesFolder = game.ReplicatedStorage.Remotes
local Mesh = Tool.GlockMesh
local Handle = Tool.Handle
local BulletPoint = Mesh.BulletPoint
local ClientBullet = RSRemotesFolder.ClientBullet
local BulletFolder = game.ReplicatedStorage.Bullets
local FirePoint = Tool.GlockMesh.BulletPoint
local ShootEvent = RemotesFolder.Shoot
local ReloadEvent = RemotesFolder.Reload
local CheckEvent = RemotesFolder.Check
local BulletCoroutine
local RBullet

local Params = RaycastParams.new()
Params.FilterDescendantsInstances = {}
Params.FilterType = Enum.RaycastFilterType.Blacklist

-- Tool Data --
local IsAutomatic = true
local LastShotTime = os.clock()
local FireRate = 0.1

local IsHeldDown = false
local Distance = 300
local Bullet = game.ReplicatedStorage.Bullets.NormalBullet
--           --

-- Functions --
local function FireClientBullet(MousePosition)
	local Dbp1 = workspace.DebugPart1
	local Dbp2 = workspace.DebugPart2
	
	local MouseDirection = MousePosition.Direction * Distance
	local MouseRay = workspace:Raycast(MousePosition.Origin, MouseDirection, Params)
	
	local MouseRayPosition = if MouseRay then MouseRay.Position else (MousePosition.Origin + MouseDirection)
	Dbp1.Position = MouseRayPosition

	local BulletDirection = (MouseRayPosition - FirePoint.WorldPosition)
	
	local BulletRay = workspace:Raycast(FirePoint.WorldPosition, BulletDirection, Params)
	local HitPart = if BulletRay then BulletRay.Instance else nil
	local HitPosition = if BulletRay then BulletRay.Position else MouseRayPosition       
	Dbp2.Position = HitPosition
	
	local BClone = Bullet:Clone()
	BClone.Size = Vector3.new(.2, .2, (FirePoint.WorldPosition - HitPosition).Magnitude)
	BClone.CFrame = CFrame.new(FirePoint.WorldPosition:Lerp(HitPosition, .5), HitPosition)
	BClone.Parent = workspace
	
	Ts:Create(BClone, TweenInfo.new(.3, Enum.EasingStyle.Quad), {Transparency = 1}):Play()
	Debris:AddItem(BClone, .4)
end

local function Shoot()
	local Mouse = UserInputService:GetMouseLocation()
	local MousePosition = workspace.CurrentCamera:ViewportPointToRay(Mouse.X, Mouse.Y)
	local DirectTime = os.clock()

	ShootEvent:FireServer(MousePosition)
	FireClientBullet(MousePosition)
end

local function OnEquip()
	local Character = Tool.Parent
	
	Params.FilterDescendantsInstances = {Character}
end

local function OnUnequip()
	Params.FilterDescendantsInstances = {}
end


-- Main
Tool.Activated:Connect(Shoot)
Tool.Equipped:Connect(OnEquip)
Tool.Unequipped:Connect(OnUnequip)

Server Script

-- Variables
local Tool = script.Parent
local Data = Tool.Data
local Remotes = Tool.Remotes
local FirePoint = Tool.GlockMesh.BulletPoint

-- RaycastParams
local RCP = RaycastParams.new()
RCP.FilterType = Enum.RaycastFilterType.Blacklist
RCP.FilterDescendantsInstances = {}

-- Remotes
local ShootRemote = Remotes.Shoot
local ReloadRemote = Remotes.Reload
local CheckRemote = Remotes.Check

-- Script Data
local Distance = 300

-- Data

-- Functions
local function HitPlayer(Character)
	print(Character)
end

local function OnShoot(Player, MousePos)
	local Dbp3 = workspace.DebugPart3
	if Tool.Parent.Name:lower() == "backpack" then return end
	local MouseRay = workspace:Raycast(MousePos.Origin, (MousePos.Direction * Distance), RCP) 
	
	local MouseRayPosition = if MouseRay then MouseRay.Position else (MousePos.Origin + (MousePos.Direction * Distance))
	local BulletDirection = MouseRayPosition - FirePoint.WorldPosition
	
	local BulletRay = workspace:Raycast(FirePoint.WorldPosition, BulletDirection, RCP)
	
	local BulletHit = if BulletRay then BulletRay.Instance else nil
	local BulletPosition = if BulletRay then BulletRay.Position else MouseRayPosition
	
	Dbp3.Position =	BulletPosition
	print(if BulletRay then "BulletRayWorked" else "Didntwork")
	
	print(BulletHit)
	if BulletHit and BulletHit.Parent and BulletHit.Parent:FindFirstChild("HumanoidRootPart") then
		HitPlayer(BulletHit.Parent)
	end
end

local function OnEquip()
	local Character = Tool.Parent
	
	RCP.FilterDescendantsInstances = {Character}
end

local function OnUnequip()
	RCP.FilterDescendantsInstances = {}
end

-- Event Functions
ShootRemote.OnServerEvent:Connect(OnShoot)
Tool.Equipped:Connect(OnEquip)
Tool.Unequipped:Connect(OnUnequip)

[simplyjustbased]

Could still use some help on this

[TortenSkjold]

What are you trying to? the result of a ray will return nil, if no target was found.

[OwlCodes (Owl)]

I am guessing the Raycast is not going in the correct direction.

local MouseDirection = (MousePosition - FirePoint.WorldPosition).Unit * Distance