I'm wondering if a small consumer ultrasonic cleaner might help speed up my scrubbing. Mainly my problem is with cement-like carbon gunk on my breech face & extractor hook that I currently have to soak with Hoppes, let sit, scrape with a plastic gun pick (nylon brushing does little and brass scratches the surrounding finish), and then repeat like 4 or 5 times to get all the gunk off.
Will an ultrasonic cleaner take care of that -- without ruining my night sights? Can I leave it field stripped, or does it need to be detail stripped? Any recommendations for cleaners & solvents?