This is very real.

509 9MM rounds of hollow point and ball ammunition and twenty-one 12-gauge shotgun shells were also found in plain sight in the rear of the vehicle, police added, along with a handgun "designed to be fired with a single hand and capable of expelling a projectile by means of an explosion."

Here's the sauce - https://wjla.com/news/local/va-man-stopped-with-unregistered-gun-500-rounds-of-ammunition-in-dc-police-say