additional regulation. that being said, we didn't saban. we didn't say confiscate. reporter: despite that agreement, democratic leaders are criticizing these efforts, arguing that by simply changing regulations rather than passing new laws, republicans are trying to avoid making any meaningful changes to gun control. >> they are going to say if you give them bump stocks, it will be a slippery slope. i certainly hope so. but i don't think bump stocks should be a substitute for the background check. reporter: there are already a number of pieces of legislation in the works by members of both parties looking to either limit or ban bump stocks, but as we've seen time and again, congress tends to take its time, particularly when it comes to heated issues such as gun control which is why republicans say changing the regulation will be a much faster way to get bump stocks off the market. gillian. gillian: get bump stocks off the market. two companies that we know