What are the proper steps to clearing the M4 carbine?

To clear an M4 carbine, first ensure the firearm is pointed in a safe direction. Pull the charging handle to the rear to eject any chambered round, then visually and physically inspect the chamber to confirm it is empty. Next, remove the magazine by pressing the magazine release button. Finally, pull the charging handle again to ensure no additional rounds are in the chamber, and keep the weapon on safe until ready for further handling.