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On "Outnumbered" on Tuesday, Dan Bongino slammed calls for stricter gun control legislation in the wake of the deadly school shooting in Parkland, Florida.

Bongino, a former Secret Service agent and NYPD officer, said it's frustrating that the debate about how to prevent mass shootings is primarily focused on new gun laws.

"Let me just let you in on a little secret," Bongino said. "Criminals don't care about your gun laws. They don't give a damn. They don't care about rape laws, robbery laws, homicide laws, burglary laws, gun laws or anything else."

He argued that instituting a ban on assault weapons like the AR-15 -- the gun used in last week's shooting -- is not the right approach because the criminals who "openly mock gun laws" will just obtain weapons illegally on the black market.

Katie Pavlich noted that the AR-15 -- which functions the same as a semi-automatic handgun, with one round fired per trigger pull -- is the most popular rifle in the U.S., owned by approximately 6 million people.

Despite the AR-15's popularity, she said, data from the Department Homeland Security shows that handguns are the weapon of choice when it comes to mass shootings.

"And let's not forget that during the church massacre in Texas that we saw recently, it was an NRA-certified instructor who used an AR-15 to stop the killing there," Pavlich said. "And so there are two sides of this story."

Authorities said the gunman, a 19-year-old former student of the school, purchased the AR-15 legally and passed a background check.

Watch more above.

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