The Colorado Senate passed a bill limiting ammunition magazines on Monday on an 18-17 vote.
Democratic Sens. Cheri Jahn of Wheat Ridge and Lois Tochtrop of Thornton voting against it while some Republican legislators vowed to disobey the measure if it becomes law.
The bill would limit ammunition magazine limits to 15 rounds and was amended to limit shotguns to 28 inches worth of shells. The measure now heads back to the House for a vote.
Speaking in favor of the bill, state Sen. Mike Johnston, D-Denver, spoke about the mass shooting Newtown, Conn.
"In that 11 seconds when he reloaded, 11 kids got away. What if that were a 15-round mag. We could have picked 11 of those little five foot coffins and chosen not to fill them," Johnston said.
Speaking against the bill, state Senator Scott Renfroe, R-Greeley, argued that the bill wouldn't change anything.
"Until we change a person's heart, we're going to have evil in the world. And that is something we cannot change with this bill."
Sen. Greg Brophy, R-Wray, came out more strongly against the bill.
"I'm telling you right now, I will not obey this law," Brophy said. He was later joined by other legislators.
"I do not represent the wishes of Washington, New York or Chicago," said Sen. Vicki Marble, R-Fort Collins, who said she would not obey the law if it passed either. "House Bill 1224 is an abomination to our freedoms."