ISIS thinks U.S. gun laws work to the group's advantage.

The Islamic extremist group posted a video Wednesday in which a militant with an American accent urges U.S.-based Muslims to “take advantage” of the country’s lax gun laws and buy arms to carry out attacks.

The four-minute online film, the first in several months from the group’s media operation, shows an injured militant who identifies as “Abu Salih al-Amriki” dressed in fatigues with a prosthetic leg and crutches.

“Take advantage of the fact that you can easily obtain a rifle or a pistol in America,” he says, perched amid ruined buildings. “Spray the kuffar with bullets so that their fear of the Muslims rises and they continue to reveal their hatred towards Islam.”

The militant also calls President Donald Trump a “dog of Rome,” who won the White House “on the back of your crusader rhetoric, which the fake media has pressured you to tone down.”

"Your war against Islam has only made your homeland more vulnerable and your society is cracking into chaos,” he adds in a film tracked by the SITE Intelligence Group.

The video is part of a series called “The Caliphate,” which has a different militant on camera for each film.

Wednesday’s propaganda is not the first to urge ISIS followers living in the U.S. to exploit America’s gun laws.

A video released by the group last year suggested followers attend gun shows in the U.S. to handpick weapons and buy in bulk if possible.

And a 2016 report by the New York Times revealed how a former Islamic State operative responsible for planning global attacks would target Muslims in the U.S. via social networks to buy guns.

“For America and Canada, it’s much easier for them to get them over the social network, because they say the Americans are dumb — they have open gun policies,” he said. “They say we can radicalize them easily, and if they have no prior record, they can buy guns, so we don’t need to have no contact man who has to provide guns for them.”

It’s an issue that's familiar to members of the U.S. intelligence community.

Nicholas Rasmussen, the outgoing director of the National Counterterrorism Center, last week tied the potential dangers of lax gun laws with future terrorist attacks.