Why doesn't the ray casting script work correctly?

All of the scripts are correct but it won't shoot for some reason.I have tried fixing it didn't help.

Gun main:

--Made by: Hirez33
--
-- November 11 2018

--[[
	
	This script manages the raycasting of the gun
	
--]]

--Variables

local remote = game.ReplicatedStorage:WaitForChild("Remote"):WaitForChild("GunEvent")

--Main

remote.OnClientEvent:connect(function (player, barrelPos, mousePos)
	local ray = Ray.new(barrelPos,(barrelPos - mousePos).unit * 300)
	local part, position = game.Workspace:FindPartOnRay(ray, player.Character, false, true)
	
	local dist = (barrelPos - mousePos).magnitude
	
	if part then
		local humanoid = part.Parent:FindFirstChild("Humanoid")
		if humanoid then
			humanoid:TakeDamage(10)
		end
	end
	
	remote:FireAllClients(player, part, position, barrelPos)
	end)

Local script:

-- Made by: Hirez33
--
-- November 11 2018

-- [[

     Local script in charge of out gun ;)

]]--

-- Variables
local gun = script.Parent
local remote = game.ReplicatedStorage:WaitForChild("Remotes"):WaitForChild("GunEvent")

--Main

gun.Equipped:connect(function (mouse)
	mouse.Button1Down:connect(function ()
		remote:FireServer(gun.Barrel.CFrame.p, mouse.Hit.p)
	end)
	
end)

BulletGenerate:

--Made by Hirez33
--
-- November 11 2018

--[[
	
	This script will generate the bullet for the player to see
	
--]]

--Variable

local remote = game.ReplicatedStorage:WaitForChild("Remotes"):WaitForChild("GunEvent")

--Main

remote.OnClientEvent:connect(function (player, part, position, dist, barrelPos)
	
	local bullet = Instance.new("Part")
	bullet.Anchored = true
	bullet.CanCollide = false
	bullet.BrickColor = player.TeamColor
	bullet.Material = "Neon"
	bullet.TopSurface = "Smooth"
	bullet.BottomSurface = "Smooth"
	bullet.Size = Vector3.new(0.3,0.3,dist)
	bullet.CFrame = CFrame.new(barrelPos, position) * CFrame.new(0,0 -dist/2)
	
	bullet.Parent = game.Workspace
	game.Debris:AddItem(bullet,0.1)
end)