Phillydog, it's a nice one and a great start!
I have it's sister, just 360 "away" from yours in production line. But it does not have the vertical production marks in the safety lever area + opposite side like yours. The marks are more square-shaped on mine.. not that there is anything wrong with any of them, just different production method I guess. Welcome to the world of details
If there is a chip missing or some other damage to your grips, we have a member here (Hugh) who does a fantastic work restoring grips. I have no idea what he actually does, but it must be some kind of magic..
Your other alternative is to clean them yourself, there are some useful treads about this if you search up. Personally I use a mild soap made for baby/children skin, it has a low ph value (about 5) and without the smell of strawberries or any other fruits.
I let it soak for a while in temperate water and use a soft toothbrush for cleaning.
But you can also buy stuff made for this exact purpose. Just don't panic when they turn gray.. and let them dry completely before oiling them up again.
You can ask 'Lugerdoc' here in the forum for a mag follower to replace that screw. Do so before it damage your 'hold open' or something