I'm sure it was this way from the Factory and with the probable pallets of these rifles they sold and are trying to process and ship... it fell through the cracks.
That wood looks really orange... or is the pic deceiving?
interesting.... they dont test fire these guns.
TI is an importer, not a manufacturer, no different than your local store not pulling stuff out of box to test individually prior to sale.
As for their supplier, they probably don't care to test run them, QC is most likely done on random units through the line and stuff like that gets missed, from what I've read, all or Civi orders are tacked onto other larger military production orders, Some defense group somewhere ordered a bazillion type 81s in that configuration and TI scored on the production getting a few in for us.