I've been meaning to post this for a while.

On the left, is all the cleaning I can do by hand with Hoppe's ultra.

On the right, is one-hour (two cycles) in the ultrasonic with simple green.

Nice! Big difference not to mention the savings in your time and effort. I love ultrasonic cleaners. Still waiting for someone to make a full sized one at a reasonable price. Way too many rifles and shotguns that could benefit from this as well as the handguns.