The Cobra handgun was reported stolen, police said.
Police said they also found marijuana, both in the passenger compartment and just outside the car.
The driver - Aaron Lee Hairston, 20, of Martinsburg - was charged with transferring stolen property, possession of marijuana and three counts of carrying a concealed deadly weapon.
He also was given a ticket on a charge of crossing the center line.
A 16-year-old passenger, whose name was not released, was charged with possession of marijuana, police said.
Hagerstown man faces charges in Pa.
CHAMBERSBURG, Pa. - A Hagerstown man who wouldn't stop for a Washington County sheriff's deputy on Wednesday was charged with suspicion of driving while intoxicated, police said.
Pennsylvania State Police in Chambersburg said in a news release that Justin D. Martin, 18, of Hagerstown, was charged with suspicion of operating a vehicle while intoxicated by a controlled substance and possession of a controlled substance.
Police said a sheriff's deputy tried to stop Martin's 2005 Dodge Neon on Cearfoss Pike in Washington County at about 2 p.m. Wednesday, but he didn't stop and continued into Pennsylvania.
After a short distance, with Pennsylvania State Police involved, he pulled over and was given citations, police said.
Police said Martin had a small amount of what appeared to be marijuana.
Hagerstown Police respond to calls
The Hagerstown Police Department responded to the following incidents, according to a news release:
· At 3:22 p.m., an assault was reported in the area of Locust Street and Randolph Avenue.
· At 6:17 p.m., a sexual assault was reported in the 200 block of South Locust Street.
· At 9:16 a.m., a man was arrested for possession of marijuana in the 1000 block of Wayne Avenue.
· At 9:39 a.m., a woman was arrested for assault in the 800 block of Frederick Street.
Frederick man faces assault charge
FREDERICK, Md. - A Frederick man was charged with assault Tuesday after officers responded to Briar Court for a report of a disorderly person armed with a knife, the Frederick Police Department said.
The man had argued with his roommates and brandished a machete at them, police alleged in a news release. He also threatened to harm his roommates, police said.
Willard Vincent Sigler, 48, of 839 Briar Court in Frederick, was charged with two counts of second-degree assault and one count of reckless endangerment.