Phil Luty's 'thehomegunsmith.com', with plans for a subgun made from scrap with home workshop level tools.
This serves multiple purposes:
1: It spreads the plans around some more.
2: It will REALLY piss off the assholes in the UK for people to see them, and read a bit of how they screwed this man.
3: You can use this to demonstrate something to anyone you know who's having fits over the Californicated mag ban being thrown out: that, at base, a magazine is a rectangular sheet-metal tube with a bottom, a spring, a piece over the spring, and the open end bent partially closed. Show that to them, and ask if they actually think they can ban that?