Replicas under the VCR Act are now termed RIF's- realistic imitation firearms.
They are defined as imitations of any firearm of a post 1870 design date.
The import, manufacture and sale is generally prohibited except to bona fide re enactors and airsoft skirmishers who are members of a recognised group with public liability insurance.
Anything held on an FAC or SGC is not covered by the VCR Act.