Back in 1965, the Army officially adopted the initial version of the 5.56x45mm AR-15/M16, the M16A1 rifle ... M4 carbine. U.S. Army Sig's family of MXC firearms — which includes the M7 ...

during the 1950s because interim automatic weapons (e.g. M-14E2/M16A1) had failed as viable "base of fire" weapons. Early in the SAW's fielding, the Army identified the need for a Product ...