"Since the Sandy Hook massacre, sales of assault-style rifles have skyrocketed and are poised to grow even further during an upcoming 'Gun Appreciation Day' organized by extreme pro-gun activists," the statement said.
The group behind the event, scheduled for January 19, uses its website to encourage Americans to "go to your local gun store, gun range or gun show with your Constitution, American flags and your 'Hands off my Guns' sign to send a loud and clear message."
Dick's Sporting Goods, one of the largest sporting goods retailers, suspended sales of certain semi-automatic rifles nationwide after the Newtown massacure.
Another likely point of contention between gun rights activists and those supporting stricter gun control is a call for universal background checks.
Biden has said several groups that his task force met with support such checks for all gun buyers, including those who purchase through private sales.
Keene has also told CNN that he does not support instituting background checks for purchases at gun shows.
He said Sunday the NRA does support the idea that people who are ruled mentally incompetent should be listed as not allowed to purchase firearms.
In the interview Sunday, Keene complained that Biden's panel didn't really listen to what the NRA had to say.
Despite promises that the task force had not reached conclusions before hearing from all sides, "the conclusions were reached," he argued. "We suspected all they wanted to be able to do was to say he had talked to us, and now they were going to go forward to do what they wanted to do."
Another question facing Biden's panel is how to tackle images of shootings in entertainment.
His task force met with leaders of the the film, TV and video game industries.
It's unknown what the task force may suggest as a response to what Obama has described as a culture that often "glorifies guns and violence."
Meanwhile, across the country, Americans of all stripes are debating the issue in person, in town hall meetings, and in social media.