I just finished cleaning my TRP, got it back together and racked the slide. Everything was smooth and sounded good. I looked down and saw this piece. Now, I only didn't basic field strip and clean and ice never seen this piece before. Does anybody have any idea what this is?
I would help you, and I had to replace the ejector in my 1911 once, but it has been about 20 years ago and I don't remember how it was retained, but do remember that it sits on top of the left side of the frame just behind the magazine well and just inside the slide with those two bars going down into holes in the top of the frame. As I said, I don't remember how it is retained. My guess is that Churchmouse could tackle the question without skipping a beat in his sleep.
As the ohers have said, that's the ejector. A loose ejector is not uncommon and is easily fixed.
Until you get it [STRIKE]staked[/STRIKE] pinned or loctited back into place, the gun should actually function if you put the ejector back and reassemble. It rides in a channel in the slide, which will keep it in place until you remove the slide again. The ejection might get a little erratic, though. It's likely that it's been loose for a while.
The ejector is usually held in place by a cross pin. Your ejector does not have a notch in the front leg so it appears that the ejector was not pinned. Locking compound is sometimes used to retain the ejector, but pinning is more secure.
Springfield doesn't pin their ejectors? Taurus pins their ejectors. Maybe it was just an error at assembly? I would contact Springfield and find out what is going on.