Hi guys Just picked up this AMT Hardballer. Gun is basically brand new. Has a lot of built up grease that’s really stubborn on the inside of the slide. I let some CLP soak and scrubbed what I could out with a nylon brush. In the pics they show what remains that I cleaned off, it’s cake on. There is no rust on this gun. Also, when I reassembled it I marked the frame where the slide stop goes in. Any tips to polish that out?
The gun is a pain to disassemble. I see why people swap a lot of parts and I want to replace the spring plug with a stainless textured one as long as it’ll take any random plug. Tips? Thanks.

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