The Brady Campaign to Prevent Gun Violence has raised about $5 million since late December, a spokeswoman for the group told POLITICO.
The group announced its fundraising haul after the National Rifle Association told POLITICO it increased its membership by 100,000 following the Sandy Hook massacre.
The cash influx came from previous supporters upping their contributions, new donors and old supporters coming back, said Deborah DeShong Reed.
The $5 million haul is close to double what the group pulled in 2010, according to the most recent tax documents available. That year, their total revenue was $2.8 million. The groupís expenses exceeded total revenue by about $222,000.