Probably not the best advise, but here goes anyway!
Hang pistol barrel with muzzle pointing down, and spray comp area with carb. cleaner, or electrical parts cleaner(the kind in a spraycan)...until the liquid dripping runs clear. If the stubborn stuff stays stuck, I just use a large bottle of Hoppe's(soak awhile), and repeat above process. My comp isn't spotless, but it is cleaned to my standards.....
Don't forget to run some patches through the bore after doing this, to remove anything that may have been blasted into it!
Scott B