The discovery of a plastic magazine, trigger and the 3D printer used to create them during a search in Bagley, Manchester, was hailed as "really significant" by Greater Manchester Police.
This is a really significant discovery for Greater Manchester Police.
If what we have seized is proven to be viable components capable of constructing a genuine firearm, then it demonstrates that organised crime groups are acquiring technology that can be bought on the high street to produce the next generation of weapons.
In theory, the technology essentially allows offenders to produce their own guns in the privacy of their own home, which they can then supply to the criminal gangs who are causing such misery in our communities.
Because they are also plastic and can avoid X-ray detection, it makes them easy to conceal and smuggle.
More top news
The great-grandmother-of-seven has explained why she won't retire from her fast food job after four decades - despite the 5am shift starts.
Sunshine gives way to cloud and showers
The Metropolitan Police Federation, which set up the official JustGiving site, said it felt a "suitable amount" had been collected.