Under the rule, the Bureau of Alcohol, Tobacco, Firearms and Explosives will send requests to gun dealers in Texas, California, Arizona and New Mexico seeking information on gun buyers who purchase two or more weapons a week that are long guns with semi-automatic action, have a caliber greater than .22 and have a detachable magazine.
Department of Justice and ATF officials say the rule is needed to combat the flow of guns going to Mexico and straw purchasers.
“Federal, state and foreign law enforcement agencies have determined that certain types of semi-automatic rifles -? greater than .22 caliber and with the ability to accept a detachable magazine -? are highly sought after by dangerous drug trafficking organizations and frequently recovered at violent crime scenes near the Southwest Border,” Deputy Attorney General James Cole said.
Source: Jason Ryan for ABC News.