Probably all Air-Soft
If ANY of the weapons they implied were used in an actual crime, I’d say it was a gross violation of good sense, propriety, and legally with respect to future motions by defense counsel (tainted evidence).
My guess is they tried to imply guns like this/that were used in these crimes but none were really the actual weapons. I imagine the operators got a little jaded and creative in their explanations and stated wrongly.