I agree with 5SPD, soak it, or use a pressure solvent, pipe cleaner and GP brush, then if need blow it out- but be warned unless your compressor has a moisture collector- you may want to oil it afterwards.
I can be pretty adventurous with taking firearms apart for cleaning when called for. Though I do try to avoid trips to the smith for reassembly. I use the 'gun scrubber' in the pressurized can when trying to clean up an something that I don't want to risk taking apart. After the cleaning I do some light lube as required.