If you live in San Diego county than jump across the border and shoot up or drop some other chemical boosters(?), at least 3 times a week, in Mexico. Though they are tighting up a lot down there. Some PL'ers and BB'ers have done that in the past. Best crossing is Otay Mesa. Little further out, but worth the extra drive. TJ is a nightmare. In either case, please watch your back, the natives are not always friendly, amigo. Those 20" guns of yours mean nothing to a 16 year old kid with a Glock 19. Guy's living in Arizona and Texas probably do the same thing and cross over.
If your stuck in Hog Fat, Iowa than try ordering on line. Use a post office or private mail drop, never a home or business address. Some have been known to hook up with a Veterinarian supply house, though that can be tricky at times. If you think you can get stuff at your gym, than the number one rule is to know your dealer. And that everyone else knows him, or her, also. Some high school kids have great connections I have been told.