New Raider 10 with hole in?

Bought brand new 2 weeks ago and found my Webley Raider 10 has a chunk cut away on left side behind the magazine,
https://2img.net/r/ihimizer/v2/150x100q90/829/dleb.jpg
https://2img.net/r/ihimizer/v2/150x100q90/820/slvk.jpg
so returned to the shop to be told this is a standard 'adjustment' to be found on all recent Turkish Webleys. He then opened a brand new one on the counter and showed me the same 'adjustment' on that one too, assured me mine wasn't S/H and even offered to swap. Curious if anyone else has the same? Kevan