"A man's rights rest in three boxes: the ballot box, the jury box, and the cartridge [ammo] box." -Frederick Douglass, 1867
It was because of the "black codes" passed after the Civil War that the 14th amendment was proposed and then passed. One of the stated goals of passage was to protect the right of African-Americans to possess and carry firearms for thier own defense.
'The black man has never had the right either to keep or bear arms,' and that, until he does, 'the work of the Abolitionists was not finished.'" -Frederick Douglass, May 10, 1965
Now, according to a Pew Research Study, 54% of African-Americans view gun ownership in a positive light. It is also being viewed as a matter of Civil Rights
The bottom line is Gun Control has origins in post-Civil War racisim. But, the Constitution, and our laws as American must and should be absolutely color-blind or there will never be real Freedom and Justice for all.