The successful imposition of "gun control has not stabilized Guatemala politically.  In effect, "gun control" ensures that only the wealthy may lawfully own firearms.  However, they tend to settle political problems with firearms.  What the "gun control" laws achieved -  some 90 years after the first such was enacted - was to clear the way for mass murder.

Lethal Laws -- "Gun Control" is the Key To Genocide
Page 229
by Jay Simkin, Aaron Zelman, and Alan M. Rice
Copyright 1994
ISBN 0-96442304-0-2