Police have seized what could be parts for a firearm produced by a 3D printer - the first of its kind in the country.
Component parts were seized in Greater Manchester's biggest ever crack down on organised crime.
Police fear the new technology could allow criminals to produce the next generation of weapons in their own homes. More than fifty arrests have been made in a week of undercover raids.
Chief Superintendent Rebekah Sutcliffe is from Greater Manchester Police:
More top news
A number of people have been injured after a building collapsed in a suspected gas explosion in Wirral
Thirty-four people have been taken to hospital and two buildings have collapsed in an explosion thought to have been caused by a gas leak.
Dry, fine and sunny this weekend across the NW. Maybe a touch more cloud around and slightly breezier on Mothering Sunday than on Saturday