Timothy Tressler pleaded guilty to possessing a machine gun and auto sears, devices that convert semi-automatic weapons into fully automatic ones. Tressler's initial arrest included charges for ...

A 16-year-old high schooler is dead after Richmond police officers were fired upon while executing a search warrant at the Belt Atlantic Apartments on Wednesday. Authorities believe the teenager sh… ...

The single felony charge encompassed possession of four machine guns as well as 28 auto sears, also known as switches or chips. More: Bump stocks seized by federal agents as Millcreek resident ...

HPD said that the traffic stop led to the removal of two dangerous weapons off of the streets including a Glock with a switch and a rifle with an auto sear.

Conversion devices, also known as switches or auto sears, convert semi-automatic weapons into machine guns that fire multiple shots automatically with the single pull of a trigger.

After homicides finally dipped last year, the first half of 2025 has been even more encouraging. King County's prosecutor points to a two-pronged strategy.

MCDs and auto sears are illegal devices that transform semi-automatic firearms into fully automatic weapons capable of continuous firing with a single trigger pull.

Police also found the rifle and two Glocks which had obliterated serial numbers and devices called auto sears, which can turn them into automatic machine guns.

Another rapid-fire gun device that is worrying federal government officials is being put to the test in lawsuits in New York City and Texas.

Investigators say the stop uncovered a Glock pistol with a switch and a rifle equipped with an auto sear. Both devices can make firearms fully automatic and are illegal under federal law.