A friend of mine who was born and raised in Mexico, and who may or may not be here legally, told me that the gov't is corrupt at city, state and federal levels, the cartels own the various gov'ts, you can't trust anyone and everyone he knows has access to something or another that goes bang.
Miguel also told me their Constitution allows the RKBAs but in reality, it's impossible to buy a firearm or ammunition legally unless you are well connected, wealthy and can purchase from the "SINGLE" licensed gun store in the nation.