The blade does look well made....the curves are nice and symmetrical...clean, neat mid rib ....probably a flattened diamond cross section. If forged, it seems to have quality....if made by stock removal..much, much less so.
Its the 'strange' forte area.....either deliberately or unfortunately the pictures do not show where the blade and forte meet, forge welded ? arc welded ? The blade seems to be a different to this 'section' both in the structure of the steel and the workmanship.
If a 'composite' made for profit ...why not just attach the Nagan styled blade to a Tulwar or Khanda hilt ? They always seem to sell well on eBay
Regards David