The Micro 9 ESV has porting on the front of the slide (barrel is not ported), ball mill cocking serrations, a Rose Copper coated barrel for increased corrosion resistance.
WARNING:
Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).