Gun ownerhip unrelated to gun homicides

In an idle moment recently, I regressed homicide rates against rates of gun ownership and the World Bank's Gini index for 62 countries. Gun ownership was not statistically significant (p = 0.58) while the Gini index was (p < 0.001) It appears, oddly, that the NRA is right when it says that guns aren't the underlying cause of gun-involved homicides: income inequality is.