Thanks, OWB.
Yes, the bottom of the firing pin retainer is rounded. It’s a little bit polished now too. And there is a surface finish on the hammer, but it seems to be breaking in and that will likely wear down to a smooth metal surface wherever there is friction.
It looks like the parts in this are of pretty good quality. Yeah, they cut corners with plastic grips and the very old-style GI sights. Cerekote rather than polished finish.
As long as it works well, I’m good with it pretty much as is. The trigger mechanism appears to be identical to other 1911s, and it’s a series 70 design.
Here’s a link to a very similar model for sale - they make a few different 1911 models, but this one seems to more closely match mine...
https://www.sportsmansoutdoorsuperstore.com/products2.cfm/ID/248740
Trigger bow slides easily around, up and down empty mag?
Trigger slides easily through the empty frame as the frame is tilted down and up?
Additional thought...
Is this trigger longer that what you’re accustomed to?
This could account for weak side shot placement as your finger is not fully seated, flesh center on the trigger, pushing the frame left in your squeeze, as you’re accustomed to a shorter trigger, which is your “natural”.