How to farm Forensic Nightmare?

[Ragnar, The Red Toker]

Looking for the blueprint for this weapon, how do i go about trying to farm this weapon and where is it located? Its in the Throne world right?

[Nakos]

Ahh... Chief Investigator Triumph according to Light.gg.

https://www.light.gg/db/items/1526296434/forensic-nightmare/

[RYZEN]

You get a guaranteed red border forensic nightmare from Fynch's mission "Gift of Appreciation". You also need to finish the prior quest from Fych "Trust goes both ways"