Cant believe this is really a question.
I have given bbs, tracer bbs, various batteries, pyro and I even gave a kid my back up aeg because I felt sorry for him even chucked in two batteries and charger.
Maybe I am too generous but one day it might come back around.
How can you be selling bb guns when you dont know the laws.
There is no licence only a defence. The main one is UKARA which as a retailer you should be a member of.
Obviously you know nothing about Airsoft or airsoft guns so please find out what your talking about before posting.
By the way heres a saying for you;
All airsoft guns are bb guns
But
Not all bb guns are airsoft guns.
What your trying to sell are not suitable bb guns for airsoft.
Can vouch for that I had a CRB and SDP delivered the other week and they hadn't been opened or tampered with. Also had no problems taking a CRB to bits so not sure whats gone wrong with yours.
Probably will be around that. A springs rating number is meters per second, 110 mps is 360 fps. Thats only a rough guide though as lots of factors play into it. Fps will be affected by your compression as much as spring which is why most of us spend so much time making sure all the seals are perfect. It varies from gun to gun even when made by the same manufacturer.
Yeah I know that just wanted to simplify it for the op. The whole valid defence, what is and what isnt is another story. A lot of shops are only accepting ukara or site membership (which means you should be on ukara database anyway) as a valid defence.