Diemaco is the sole supplier for the military buttstocks, and I can't convince them to sell to me. The only thing that I've been able to come up with is the A-1 stock made out of a more durable material, with a larger storage area. My normal A-2 stock mfg. was originally working on the project, but after 6 months of trying they finally gave up. They couldn't get the mold quite right for some reason.
I'm still working on getting them out of the A-2 material, but without much luck.