We get frequent emails about airsoft license or UKARA licenses.

There is no such thing as a UKARA License or an Airsoft License.

UKARA registers players to a database which can be looked up by participating retailers and queried by Customs etc. Any fee you may pay is to the game site for their administration or membership card provided by them, not to UKARA

The part of the Violent Crime Reduction Act regarding airsoft is related to sales.
Sales have been restricted from the general public by making the seller liable for prosecution.
No license is involved in this, nor have there been any change to the basic control over use, ownership, or storage of RiFs previous to the new Act.