the slide does not run on the polymer rails, so if there is wear there, then it is the slide evening things out. Your OK, leave it alone, or get some fine 600+ grit paper and sand the ruff spots off the polymer rails. I use grease in my slid,e as it doesn't run like oil and will stay where u put it look upscott240 said:
Mil-comm.com and buy that TW25 syringe grease, It is the best IMO and u can run a small line of grease right inside the slide rails with that syringe..