Seems like it might have finally run dry.... AIM, JG, Dan's, Wideners, etc have all run out in the last few months and haven't brought it back. It's too bad that the surplus might be gone but at least Prvi Partisan makes relatively inexpensive ammo for the K31. You can get it from AIM for .56 a round which really isn't that much of a bump since GP11 was going for around .50 a round towards the end. Looks like the Wolf from JG is a good bit more expensive, can't really see paying more for Wolf than Prvi. Hornady makes some as well but it's more like $1 a round.