I believe this model is a Western Arms by way of a Lefever/Ithaca and sold by Montgomery Ward and all parts are there..
When test firing the gun would not fire. Not much of a mark on the primers. I was using modern Federal ammo. The firing pins hit hard with a nice dent against a piece of pine when the triggers are pulled. The right trigger has a solid thud sound when released but the left side has almost a hollow sound to it but both make dents in the wood. I had this issue with a single shot and switched to paper loads and it fired. I have not tried paper loads yet because I'd like to correct this issue.
It also has automatic ejectors but they only extract upon firing. This guy's parts look almost like a Lefever Nitro Special which makes sense with the Ithaca background.
I look forward to any help.
Scott