So since PDI is having a halloween sale and a shipping sale i decided to go and buy a full type 96 hard set off of X-fire. I've received an email from them telling me that they need my license but i don't have one. Is it likely to be stopped at U.K. customs?
Somewhat after the fact but hopefully useful to future readers.
1) It isn't a licence, there is no licence for airsoft in the UK. UKARA ( and other systems) are proof of an exemption from the terms of the Violent Crime Reduction Act (VCRA 2006) allowing you to purchase a Replica Imitation Firearm (RIF).
2) You only need UKRA, or another proof of exemption, if you are importing a whole complete RIF in to the UK. If you are buying parts you shouldn't need to prove you need/have an exemption. PDI may be asking as a default position but it isn't needed to import things like pistons, hop ups, barrels in to the UK.