Arizona is step closer to making an historic Colt revolver the state's official firearm.

The state Senate on Tuesday approved a bill to give that status to the Colt Single-Action Army revolver, a weapon that bill supporters say contributed to the state's heritage.

Gun-control advocates previously denounced the measure as time-wasting and insulting, since it comes so soon after the deadly Jan.8 shooting in Tucson that killed six and wounded U.S. Rep. Gabrielle Giffords, a former Arizona legislator. But the only criticism during Tuesday's vote came from a senator who questioned whether the state should be endorsing a commercial product.

Republican Sen. Adam Driggs of Phoenix noted that Colt's lobbyist had advocated for the bill's passage.

The Senate's 18-12 vote sends the bill to the House.