I think they were made at a stage in Webley's history where they we rebadging cheaper foreign air rifles. You might find 'made in Spain' on it somewhere. I believe it is a Gamo and they also bought Chinese B26's in as well (the HW95 clones). Venoman kindly sold me a .177 barrel for an SMK xs20 that came from redundant Webley stock IIRC.