Yeah you lose them for the period of time where you are incarcerated. If you served your time you’ve paid your debt to society as far as I’m concerned. As others have said, the ones who we really have to worry about are gonna get guns regardless. It makes no sense to make released felons even more resentful of society by denying them constitutional rights after they’ve served their time. 

That being said, niggers aren’t human and shouldn’t have human rights in the first place.