Originally Posted by crushproof
tonight i just did a basic field strip cleaning on my 23, when i was looking at the cover plate and you know the little cutout on the cover plate on the upper right that shows the back of the extractor assembly it had a copper tint to it. got me worried was rust so i took off cover plate and removed the extractor assemble i took a little hoppes to it and took most of it off but not completely. so i used very gently a little sand paper over the back of it and got it all off. what i'm wondering folks is if using the sandpaper a little on the back of the ectractor assembly to get the stuff off would affect reliability? -thanks
It is good that you are learning to clean and inspect your firearm.
Without being able to see the parts you are talking about I would have to say replace that part with a new one at your first opportunity.
Any good GLOCK ARMOR in your area will be able to get the parts you need.
In the furture, may I suggest a wirebrush and some oil instead of sandpaper?