Giving ammo with the m9k weapons ?

I am trying to make a ammo box that gives ammo with the m9k weapons. There is one problem pulse ammo (The ammo what most assault rifels use in M9K) isn’t part of the default ammo types found here. What should I do ?

The code I am using is

function ENT:Use(a , c)

	c:GiveAmmo( 25, "Pulse", true)


but this doesn’t work…

[editline]12th March 2016[/editline]

Never mind I was stupid I forgot about ar2 ammo from M9K.