What should a soldier do if the M203 grenade launcher fails to fire after being triggered?

When a soldier encounters a situation where the M203 grenade launcher fails to fire after being triggered, the appropriate action is to inspect and clear the firing mechanism. This step is crucial because a failure to fire can be attributed to various issues, such as a malfunctioning primer, a failure in the firing pin mechanism, or blockage in the barrel. Inspecting the firing mechanism allows the soldier to identify and rectify any problems safely.

Taking immediate action to check the launcher helps ensure that it can be safely operated again or determines if further maintenance is required. This proactive approach prioritizes safety and readiness, which are vital components of effective weapon handling in combat situations.

Other options might suggest actions that could lead to unsafe practices or unnecessary delays. For example, immediately disassembling the launcher could be impractical in a tactical environment where rapid response is critical. Similarly, reporting the issue to the unit commander without first attempting to diagnose the problem could slow down response time when immediate resolution might be possible. Attempting to fire again without a delay may result in an unsafe situation if the malfunction remains unaddressed. Thus, inspecting and clearing the firing mechanism is the most logical and safe first step in managing a failure to fire.