Why won't this gun script work!?

Here is the script.

Player = game.Players.LocalPlayer
Pistol = script.Parent
Ammo = 10
mouse = Player:GetMouse()
enabled = true
function Shoot()
	if Ammo >= 1 and enabled == true then
	enabled = false
	Ammo = Ammo -1
	print("You have " .. Ammo .."ammo left!")
	Bullet = Instance.new("Part", Workspace)
	Pistol.GripPos.Vector3.new(0, -0.35 -0.4)
	game.Debris:AddItem(Bullet, 2)
	Bullet.Shape = "Ball"
	Bullet.Size = Vector3.new(0.2, 0.2, 0.2)
	Bullet.TopSurface = "Smooth"
	Bullet.BottomSurface = "Smooth"
	Bullet.BrickColor = BrickColor.new("Dark stone grey")
	Bullet.CanCollide = false
	Bullet.CFrame = Pistol.Handle.CFrame
	Bullet.CFrame = CFrame.new(Bullet.Position,mouse.Hit.p)
	BM = Instance.new("SpecialMesh", Bullet)
	BM.MeshType = "Sphere"
	BM.Scale = Vector3.new(0.2, 0.2, 0.2)
	v = Instance.new("BodyVelocity", Bullet)
	v.velocity = Bullet.CFrame.lookVector *90
	v.maxForce = Vector3.new(math.huge, math.huge, math.huge)	
	FireSound = Instance.new("Sound", Bullet)
	FireSound.SoundId = "http://www.roblox.com/asset/?id=31760113"
    RP = math.random(60, 80)
    RP = RP /10	
	FireSound.Pitch = RP
	RV = math.random(70, 90)
	RV = RV /10
	FireSound.Volume = RV
    FireSound:Play
    game.Debris:AddItem(FireSound, 2)
    wait(0.1)
    Pistol.GripPos.Y = -0.6
    wait()
    enabled = true
	end
end

Pistol.Activated:connect(Shoot)

Output says Players.Player1.Backpack.Pistol.LocalScript:37: function arguments expected near 'game'.What does that mean?Help!