Reminds me of a brand new Webley Nemesis I played with last week. Never been out of it's box since the guy bought it and it wouldn't give any compression. Our resident gunsmith took it apart only to find it hadn't been put together right, 2 mins later it was working fine.
(Actually not a bad pistol in all honesty, the trigger is a bit naff but it was more accurate than me and very consistent once re-assembled. But I still bought the HW40 instead )

Webleys QC has been seriously lacking over the years.