Hey all I am new with the gun scrubber product, so far it seems to do its job. I have German officer Sig P6 trade in that I bought when I was 21 and never detail stripped it, I shot it a bunch and did a normal field strip and clean but again never detail stripped it and cleaned it. I am now getting around to the detail stripping it and holy hell is it dirty. I used the gun scrubber and it cleaned up really well. All the powder residue that has been on there for the past 5 years or maybe even longer since before I bought it broke free and wiped away. My question and worry is, Do I need to apply oil after using the gun scrubber? I mainly used it on the breach block/firing pin assembly. I know it isn't a good thing to use oil where the FP is, but I ham a bit worried about the metal corroding and developing rust.