The Army is updating its procedure for operating the M4A1 carbine after a soldier recorded a cell phone video of a malfunction that shouldn’t have happened.
The gun in question was a standard M4, which fires in semi-auto and 3-round burst, to fire in full-auto.
In the video, the solider put the selector on his rifle between “semi” and “auto” and pulls the trigger. The gun does not fire. When he switches the selector to “auto,” the carbine immediately discharges a round.
According to this story from AmericanMilitaryNews.com, the Army’s Tank-automotive and Armaments Command (TACOM) first issued a warning about the problem in March and April.
Inspectors were able to replicate the malfunction depicted in the soldier’s video in about 10 percent of the firearms they inspected, according to the defense industry journal Soldier Systems.
In some cases, the carbines fired when the selector was switched from “safe” to “semi-auto,” the story says.
The means that Army personnel must change the way they check functions on M4s, M4A1s, M16A2s, A3s, and A4 rifles and to perform immediate action drills to diagnose weapon stoppages, the story says.