How can the government "buyback" firearms from me? To buyback something, doesn't the entity doing the buyback have to have sold it to me in the first place? As far as I know, the only people the US government can "buyback" firearms from would be the Mexican drug cartels that got their weapons during the Obama administration during the Fast & Furious operation. I've never seen the government sell weapons to American citizens for as long as I've been alive.