How many categories of malfunctions are identified for the M4 Rifle?

The M4 Rifle is understood to have four distinct categories of malfunctions. These categories include:

1. Failure to Fire
2. Failure to Feed
3. Failure to Eject
4. Double Feed

Understanding these categories is crucial for effective weapon handling and troubleshooting in the field. Each malfunction type presents different challenges and requires specific corrective actions to resolve. For instance, a failure to fire may involve an issue with the ammunition, while a double feed requires a detailed clearing procedure to remove the obstructed rounds from the chamber. This thorough classification helps soldiers quickly identify problems and restores functionality to the rifle, thereby ensuring preparedness in various scenarios.

The other options suggest more or fewer categories, which do not align with the established military training and manuals on the M4 Rifle. This systematic approach ensures that personnel are adequately trained to handle common rifle malfunctions.