Hello Andy and welcome to the Forum.
Sadly PFCGUK closed for business awhile ago. I understand the MG-Props are still in business.
Be aware that you must have a defence against the VCRA legislation to be able to buy a PFC Modelgun as they are classed as Realistic Imitation Firearms. You'll need to be a member of a Reenactment Group, or a member of an Airsoft skirmish site and must provide proof to a prospective seller.
One way around that is to have the Modelgun painted in a bright colour over 50% of its' surface.
As dealers are very limited, the s/h market is the best place to look. We have a Buy/Sell category here on the Forum. Wanted Ads are welcome but please ensure you comply with the VCRA.
Any questions you may have about the above, or any particular Modelgun(s), then please don't hesitate to ask.
Best Regards
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Cerwyn
Hobby collector of Replica model guns and Militaria.
also member of Living History Reenactment Groups.