A homeless woman was busted on Long Island after cops found a handgun loaded with armor-piercing bullets, extra ammo, a ski mask and burglar tools in her car, Nassau County police said Monday.

Officers found Brittany Morgan asleep in her idling 2008 Ford Mustang in the parking lot of an AMC movie theater in Levittown around 11:36 p.m. Sunday, police said.

During a wellness check, Morgan woke up, made “a furtive gesture” with her hands and refused to comply with commands from the officers to show her hands, cops said.

Once the police got the 25-year-old homeless woman out of the car, they found the black handgun in the passenger seat, along the rest of the arsenal, officials said.

Morgan faces multiple charges including criminal possession of a weapon and possession of burglar tools. She will be arraigned Monday in Hempstead.