Every year, the Montgomery County sheriff's office collects hundreds of firearms that are confiscated from criminals after domestic violence or other crimes.
As convictions are appealed, the weapons sit for years in this secret vault.
But every few months, deputies make a trip to this facility in Dickerson, Maryland to hurl gun after gun into a giant vat normally used to incinerate trash.
An enormous claw, like an arcade game, drops more garbage on top to speed the burn.
Later, any scrap metal found in the ashes will be removed with a magnet and recycled.
Next week, the same process will be used to destroy unwanted firearms collected at a Montgomery County "gun turn-in" event.
The Montgomery County gun turn-in event will be held Saturday, May 11th from 10 a.m. to 2 p.m. It's anonymous with no appointment necessary and no questions asked.
Darren Popkic, Montgomery County Sheriff, says they often see guns turned in that are inherited by family members who no longer want them
Law enforcement officials acknowledge this is a drop in the bucket compared to what's on the streets.
But they say destroying these weapons still makes the community safer.
"If we can take a couple of unwanted guns off the street that could be potentially made available to someone to commit a crime and that saves a family or victim the tragedy of being the victim of a crime, then that's a very positive thing," says Montgomery County State's Attorney John McCarthy.