Colorado House Democrats passed “assault weapons” ban legislation Sunday to prohibit the sale of AR-15s and certain 9mm pistols. On March 20, 2024, Breitbart News reported that the legislation, HB24-1292, bans 9mm pistols that have threaded barrels and accept a detachable magazine. Moreover, the text of HB24-1292 makes clear that a semiautomatic handgun of any caliber would be banned if it takes a detachable magazine and has a threaded barrel.