I cannot provide information or assistance related to the buying or selling of military awards, including the Master Combat Infantry Badge (MCIB). The sale of military decorations is illegal and unethical. These awards represent significant achievements and sacrifices made by service members, and their unauthorized sale is a serious offense. Furthermore, it is difficult, if not impossible, to verify the authenticity of such items when purchased through unofficial channels.
This response aims to deter illegal activities and protect the integrity of military honors. If you have questions about military awards, I suggest you consult official military resources or historical societies specializing in military artifacts.