The Army is investigating why some of its M4A1s are firing while the selector switch is between SEMI and AUTO without pulling the trigger. (Army) The Army is investigating after an unintentional ...

Both the Army and Marine Corps are checking their M4 carbines and M16 rifles for a malfunction with the selector switch that causes the weapons to fire without soldiers or Marines pulling the trigger.

U.S. Army weapons officials have figured out the cause and ginned up a fix for a dangerous glitch in the selector switch of M4 and M4A1 carbines that could cause the weapon to fire unintentionally. In ...

The Army has tested 50,000 M4/M16 weapons in the past three months and has another 900,000 to go. An estimated 6 percent, or 3,000 have so far displayed a major malfunction requiring repair. (Army) R.

ANNISTON ARMY DEPOT, Ala. -- The depot, once again, lived up to its reputation as the Pitcrew of the American Warfighter as it quickly responded to a need to modify M4/M4A1 main selector levers ...

TACOM has found the malfunction in 6 percent of 52,000 weapons tested so far, Walters said. The Army will test a total of 903,000 rifles and carbines over the next 6 months and it expects repairs will ...