The M4A1+ effort was designed to look for add-on components that will "seamlessly integrate with the current M4A1 Carbine ... without negatively impacting or affecting the performance or operation of the M4A1 weapon," a FedBizOpps document states, reported by National Interest.
The US Army has now produced at least 117,000 battle-tested, upgraded M4A1 rifles (Picture source : DVIDS) |