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DENVER — One week after two state lawmakers were recalled by constituents in large part due to their support of gun control legislation, the state’s largest gun rights lobbying group announced that it’s filed a lawsuit to overturn two of the new laws.

Rocky Mountain Gun Owners, the “no compromises” pro-Second Amendment group led by the controversial Dudley Brown, announced the suit in a fundraising pitch to members on Tuesday.

Republican lawmakers and opponents have announced plans to introduce legislation next year to roll back a ban on magazines of 15 rounds or more and a law expanding background checks on all gun purchases and transfers; but, with Democrats controlling both chambers — they hold a 37-28 majority in the House — those bills aren’t going anywhere.

Hence, the turn to the courts.

“RMGO, working with John Sternberg, a Pueblo resident, and Matt Solomon of Alpine Arms, is filing a lawsuit to challenge the constitutionality of both HB 13-1229 (Expanded Brady Registration Checks) and HB 13-1224 (The Magazine Ban),” Brown writes in the fundraising email.

“These laws overreach so many constitutional barriers it’s not even funny. That’s why we need your help to put a stop to this ban.

“As you may know, lawyers are not cheap, and this is bound to be an expensive protracted legal struggle,” Brown continues.

“If we are going to win, we can’t afford to hold anything back – especially with our constitutional rights at stake.”

The new laws are already facing a legal challenge from a group of gun owners, retailers and activists that’s being led by the conservative Independence Institute, a Denver think tank.

When the suit was filed, 55 of Colorado’s 62 sheriffs signed on to the suit as plaintiffs and served as the public face of the legal effort; however, Attorney General John Suthers, a Republican tasked with defending the state against the suit, filed a motion last month that the sheriffs don’t have standing to sue.