The Obama administration on Wednesday announced a series of specifications for smart-gun manufacturers, born out of the president’s January executive action aimed at curbing gun violence. But there’s a catch to the new set of guidelines: They’re voluntary. “This project was designed to spur the growth of enhanced gun safety technology – and not to mandate that any particular individual or law enforcement agency adopt the technology once developed,” the Department of Justice wrote in a blog post. The National Rifle Association’s Institute for Legislative Action wrote an essay Friday that questioned what, if anything, the Obama administration’s smart-gun effort accomplished. “But it appears the president hopes to portray the publication of the document as a ‘win’ during his waning days in office,” the piece stated.