GOP Presidential candidate Marco Rubio urges the American people to buy guns. Why? Because, apparently, it will be the last line of defense against the terrorist group ISIS.

Although the threat of an ISIS invasion to the U.S. has yet to materialize and the cases of mass shootings are on the rise, the Florida senator is not taking any chances. In fact, according to Huffington Post, Rubio even purchased a gun last Christmas Eve.

In an interview by CBS News, he was asked why he bought a handgun. He answered that personal firearms are "the last line of defense against ISIS."

The young senator reiterated that he has the right protect his family, and also said that he thinks many Americans also feel the same way with gun ownership.

Furthermore, Rubio also said that if ISIS were to visit the U.S. at any moment, it's his right or ability to protect his family, and the gun will serve as the last line of defense against the terrorists or any other criminal group.

However, as of this year, any serious threat of the group invading America is very far from happening. Not only do they not have the capacity to do so, but also because the United States has one of the most well-funded military throughout the whole world.

Add to the fact that ever since the tragedy of 9/11 Attacks, the country's airports have tightened their security measures.

However, the country's counter terrorism officials did raise concerns regarding ISIS inspiring immigrants living in the United States to form their own branch, but according to reports, that has yet to materialize. Furthermore, the San Bernardino attacks were reportedly inspired not by ISIS, but by a more well-established terrorist group -- Al Qaeda.

Still, Rubio is keen on fighting for his and the citizen's right to bear firearms. In fact, he even criticized President Barack Obama during the last GOP Presidential debate.

According to him, "I am convinced if this president could confiscate every gun, he would," while further adding that the country's Second Amendment is not an option, but a right.

Furthermore, Latino Fox News reported that, during a campaign, Rubio even personally stopped at a gun store in New Hampshire.

And during his campaign rally, he was even given a rifle as a present. Rubio then said that he and his wife are proud gun owners and the gift is a welcome addition to their home.