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Who made this trigger group?

Looks to be a Ruger metal unit.
[img<a href="https://imgur.com/58oa9g1"><img src="https://i.imgur.com/58oa9g1.jpg" title="source: imgur.com" /></a>][/img]
[img<a href="https://imgur.com/58oa9g1"><img src="https://i.imgur.com/58oa9g1.jpg" title="source: imgur.com" /></a>][/img]

Comments
The Rimfire Central site has one of their forums, dedicated to custom and aftermarket non OEM 10-22's. if none of our guys can help. Might consider, posting your question and photos over there.
Mike
It' for a ruger 10/22.
I would be interested in what the trigger release weight is.
Not much help here. Have a great day..