Other commenter pretty much answered this - but every legendary weapon engram since ROI has decrypted into a taken king weapon for me so I suppose theres still a chance. But if you just want something that looks and plays similarly then check out the gunsmith orders. I think the name of one of the scouts he sells is "Tuonela" and its got a similar model and archetype to hung jury. You'd just have to hold onto the package till one of the rolls was the one you want. My friend got the pre april roll on it (triple tap, extended mag and firefly)