Lua Script not working?

So I wanted to troll some of my friends in arsenal with this script, 

game.Players.LocalPlayer:GetMouse().KeyDown:Connect(function(k)

if k == "e" then

local Gun = game.ReplicatedStorage.Weapons:FindFirstChild(game.Players.LocalPlayer.NRPBS.EquippedTool.Value);

local Crit = math.random() > .6 and true or false;

for i,v in pairs(game.Players:GetPlayers()) do

if v and v.Character and v.Character:FindFirstChild("Head") then

local Distance = (game.Players.LocalPlayer.Character.Head.Position - v.Character.Head.Position).magnitude

for i  = 1,10 do

game.ReplicatedStorage.Events.HitPart:FireServer(v.Character.Head,

v.Character.Head.Position + Vector3.new(math.random(), math.random(), math.random()),

Gun.Name,

Crit and 2 or 1,

Distance,

Backstab,

Crit,

false,

1,

false,

Gun.FireRate.Value,

Gun.ReloadTime.Value,

Gun.Ammo.Value,

Gun.StoredAmmo.Value,

Gun.Bullets.Value,

Gun.EquipTime.Value,

Gun.RecoilControl.Value,

Gun.Auto.Value,

Gun['Speed%'].Value,

game.ReplicatedStorage.wkspc.DistributedTime.Value);

end

end

end

end

end)

but the thing is whenever i execute it almost never works ive tried every script and still wont work can someone help me? i used this script alot