CD163 (M2c) and CD206(M2a) work fine for IHC. You just have to be careful and check if the clone and antibody you are using is appropriated for IHC. For M1 people usually go for iNOS intracellular staining.

Depending on your cell type, i.e. mouse or human, you could use the following sets of markers: iNOS intracellular for M1 for both mouse and human, Arginase intracellular for mouse and STAT6 intracellular for human for M2. You can have a look at these references and then decide antibodies for which markers are optimized for IHC.

 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3944738/

You can Check iNOS for M1 and you can check the possibility of IL-12p4 or p70 for M2?

Are you talking about murine or human markers? CD163 and CD206 should be fine for both, as M2 markers, but iNOS will not work for humans. In this case, IL-12 should be helpful.

mouse M1: iNOS  mouse M2a: Arginase 1 or CD206

human M1: CD163   human M2a: CD206