Erma Et-22 Navy missing a part (Pace FL)

[TRTXHunter]

Just installed a trigger bar with plunger and spring, and a sear release spring. But I can't seen to identify what else I am missing. I can't find a schematic for this gun online, and I know there's got to be a piece that connects the trigger bar and the sear. Can you help me out?

 

[Duckyou]

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several models here.