Grenade doesn't play sound

[fickle falcon]

For some reason, when I use the grenade, there's no error, but it doesn't play the sound when it explodes. I don't know how to fix this, can anyone help me?
BTW here is the script for the grenade:
local userInput = game:GetService('UserInputService')
local player = game.Players.LocalPlayer
local mouse = player:GetMouse()
local grenadeSound = Instance.new('Sound')
grenadeSound.SoundId = "rbxassetid://1449829557"

local ReplicatedStorage = game:GetService('ReplicatedStorage')
local grenadeEvent = ReplicatedStorage:WaitForChild('GrenadeEvent')

local function throw(input, gameProcessed)
if not gameProcessed then
if input.userInputType == Enum.UserInputType.Keyboard then
local keycode = input.KeyCode
if keycode == Enum.KeyCode.G then
grenadeSound:Play()
grenadeEvent:FireServer(mouse.Hit.p)
print("grenade")
end
end
end
end

userInput.InputBegan:Connect(throw)

[ivory sun]

** You are now Level 1! **

[fickle falcon]

btw here is where the grenade script came from (excluding the sounds) https://www.youtube.com/watch?v=Cj_-o5Tjdtg

[calm blaze]

you didnt define the parent of the sound