AUSTIN — Sen. Don Huffines, R-Dallas, introduced a slew of gun-related bills late Wednesday, two of which are aimed at preventing firearm regulations at all levels of government.

One measure calls for an amendment to the Texas Constitution to prohibit the Legislature or local governments from requiring Texans to register their firearms. Huffines said in a written statement that the measure would prevent a "sneak attack or backdoor, dark-of-the-night attempt to create a gun registry."

Huffines also offered a bill to prevent city or county governments from taxing firearms, knives or ammunition. It would also bar local regulations on the sale, purchase or production of firearms.

"On too many issues, a handful of liberal politicians in city halls and county courthouses have made it clear that they are willing to go to great lengths to undermine Texans' personal and economic liberties," Huffines said.

Huffines is also looking to lessen the charges faced by those who are pulled over for driving while intoxicated with a firearm in their vehicle. Senate Bill 458 would ensure that someone facing a DWI charge who has a license to carry a firearm would not face additional charges if his or her gun is stored in the car or out of reach. It would not extend to those who have guns on their person when they are pulled over.

In his final gun bill filed Tuesday, Huffines looked to codify the Lone Star State's affections for firearms and make the cannon the state's official gun.

"Second Amendment liberty is critical for the preservation of all of our other liberties," Huffines said in a news release detailing the new legislation. "Law-abiding Texans have a right to self-protection, to keep our families safe, and to enjoy the great outdoors. Wherever state government interferes with that right, or unduly burdens it, it is my duty as a state legislator to fix it."

Lawmakers enacted sweeping gun-rights changes in their last session two years ago, including measures to allow the open carrying of handguns and the carrying of concealed handguns on state college campuses.

This year, Lt. Gov. Dan Patrick has made reducing the cost of obtaining a concealed handgun license a priority. Other efforts to loosen restrictions on guns, such as a bill by Rep. Jonathan Stickland, R-Bedford, to allow for "constitutional carry," which would allow the carrying of a gun without a state license, are starting to take shape.