VCRA defence, UKARA is a retailers' association with a database. It's been over a decade since this law was past, anyone who still doesn't doesn't get it needs to go and do some reading. Don't ask other people who don't know what they're talking about, go find some proper articles and look up the actual act on the government website; it's right there, easy to find and not that complicated to understand the basics.
If you don't have a defence from prosecution under the VCRA laws, don't manufacture, import or attempt to purchase a RIF. Being on UKARA's database is not the only defence.
I'm not going to start talking about the false economy of 8fields, nuprol and viper vs surplus issue kit or hunting down quality stuff for the same price 2nd hand, because that's a lesson most people have to learn for themselves.