im having trouble finding a way to add sound to my weapon?

this gun shoot silent, i want to add sound to it when it shoots, how would i do that?

player = game.Players.LocalPlayer
mouse = player:GetMouse()
damage = 10
reload = 1.5
rate = 0.1
name = script.Parent.Name
fire = true
Type = "Auto"
MaxClip = 30
Clip = MaxClip
Stock = 300
firing = false
script.Parent.Name = name.. " (".. Clip.. "/".. Stock.. ")"
script.Parent.Activated:connect(function()
	if Clip >= 1 and fire == true then
		if Type == "Auto" then
			repeat Clip = Clip - 1
				local load = player.Character.Humanoid:LoadAnimation(script.Parent.Anims.R15Shoot)
				load:Play()
				firing = true
				local bullet = Instance.new("Part", workspace)
				bullet.Position = script.Parent.Handle.Position
				bullet.CanCollide = false
				bullet.Material = "Neon"
				bullet.BrickColor = BrickColor.new("New Yeller")
				bullet.Size = Vector3.new(.2,.2,.7)
				bullet.CFrame = CFrame.new(script.Parent.Handle.Position,mouse.Hit.p)
				local v=Instance.new("BodyVelocity", bullet)
				v.Velocity = bullet.CFrame.lookVector*500
				bullet.Touched:connect(function(hit)
					if hit.Parent:FindFirstChild("Humanoid") and hit.Parent ~= player.Character then
						hit.Parent.Humanoid.Health = hit.Parent.Humanoid.Health - damage
						bullet:Destroy()
					end
				end)
				script.Parent.Name = name.. " (".. Clip.. "/".. Stock.. ")"
				script.Parent.ExtraParts.Flash1.Transparency = 0
				script.Parent.ExtraParts.SlidePos1.Transparency = 1
				script.Parent.ExtraParts.SlidePos2.Transparency = 0
				wait(rate/5)
				script.Parent.ExtraParts.Flash2.Transparency = 0
				wait(rate/5)
				script.Parent.ExtraParts.Flash1.Transparency = 1
				script.Parent.ExtraParts.Flash2.Transparency = 1
				script.Parent.ExtraParts.SlidePos1.Transparency = 0
				script.Parent.ExtraParts.SlidePos2.Transparency = 1
				wait(rate/5)
				wait(rate/5)
				wait(rate/5)
				game.Debris:AddItem(bullet,10)
			until Clip < 1 or firing == false
		elseif Type == "Auto" then
			local load = player.Character.Humanoid:LoadAnimation(script.Parent.Anims.R15Shoot)
				load:Play()
				Clip = Clip - 1
				local bullet = Instance.new("Part", workspace)
				bullet.Position = script.Parent.Handle.Position
				bullet.CanCollide = false
				bullet.Material = "Neon"
				bullet.BrickColor = BrickColor.new("New Yeller")
				bullet.Size = Vector3.new(.2,.2,.7)
				bullet.CFrame = CFrame.new(script.Parent.Handle.Position,mouse.Hit.p)
				local v=Instance.new("BodyVelocity", bullet)
				v.Velocity = bullet.CFrame.lookVector*500
				bullet.Touched:connect(function(hit)
					if hit.Parent:FindFirstChild("Humanoid") and hit.Parent ~= player.Character then
						hit.Parent.Humanoid.Health = hit.Parent.Humanoid.Health - damage
						bullet:Destroy()
					end
				end)
				script.Parent.Name = name.. " (".. Clip.. "/".. Stock.. ")"
				script.Parent.ExtraParts.Flash1.Transparency = 0
				script.Parent.ExtraParts.SlidePos1.Transparency = 1
				script.Parent.ExtraParts.SlidePos2.Transparency = 0
				wait(rate/5)
				script.Parent.ExtraParts.Flash2.Transparency = 0
				wait(rate/5)
				script.Parent.ExtraParts.Flash1.Transparency = 1
				script.Parent.ExtraParts.Flash2.Transparency = 1
				script.Parent.ExtraParts.SlidePos1.Transparency = 0
				script.Parent.ExtraParts.SlidePos2.Transparency = 1
				wait(rate/5)
				wait(rate/5)
				wait(rate/5)
				game.Debris:AddItem(bullet,10)
		end
	end
end)
script.Parent.Equipped:connect(function()
	script.Parent.Name = name.. " (".. Clip.. "/".. Stock.. ")"
	local load = player.Character.Humanoid:LoadAnimation(script.Parent.Anims.R15Hold)
	load:Play()
	script.Parent.Unequipped:connect(function()
		script.Parent.Name = name.. " (".. Clip.. "/".. Stock.. ")"
		load:Stop()
	end)
end)
script.Parent.Deactivated:connect(function()
	firing = false
end)
mouse.KeyDown:connect(function(key)
	if string.lower(key) == "r" and fire == true and Clip < MaxClip and script.Parent.Parent == player.Character then
		script.Parent.ExtraParts.SlidePos1.Transparency = 1
				script.Parent.ExtraParts.SlidePos2.Transparency = 0
		local load = player.Character.Humanoid:LoadAnimation(script.Parent.Anims.R15Reload)
				load:Play()
		local clone = script.Parent.ExtraParts.Mag:Clone()
		clone.Parent = nil
		script.Parent.ExtraParts.Mag.Weld:Destroy()
		fire = false
		wait(reload)
		script.Parent.ExtraParts.Mag:Destroy()
		script.Parent.ExtraParts.SlidePos1.Transparency = 0
				script.Parent.ExtraParts.SlidePos2.Transparency = 1
		clone.Parent = script.Parent.ExtraParts
		fire = true
		local amount = MaxClip - Clip
		if Stock >= amount then 
		Stock = Stock - amount
		Clip = Clip + amount
		script.Parent.Name = name.. " (".. Clip.. "/".. Stock.. ")"
		elseif Stock < amount then
			Clip = Clip + Stock
			Stock = 0
			script.Parent.Name = name.. " (".. Clip.. "/".. Stock.. ")"
		end
	end
end)