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Montgomery County police are on the lookout for a stolen cache of police gear—including an assault rifle.

According to a press release, an officer who lives in Brookville, Md., had his unmarked police car parked outside of his residence in the 2500 block of Sappling Ridge Drive between 9:00 p.m. on Monday and 5:30 a.m. on Tuesday. Sometime during the night, a thief showed up.

“During the night an unknown suspect broke into the vehicle and stole a Colt M-4 Rifle, two loaded M-4 magazines, two sets of handcuffs, two Montgomery County Police badges, an ASP baton, and two loaded .40 caliber Glock magazines,” authorities said. “The officer discovered the gun and equipment missing the next morning.”

An M-4 is a semi-automatic assault rifle that can fire 700 – 950 rounds per minute.The release doesn’t identify the officer involved, but he or she is probably in big trouble.

“It is not a normal practice or policy of the Montgomery County Police Department officers and detectives to store their weapons and other serialized equipment overnight in a marked or unmarked police vehicle,” the release notes.