As the War Zone notes, the first 120 CSASS rifles ... replace the M40 rifle they’ve been lugging since the Vietnam War. Sign up for Task & Purpose Today to get the latest in military news ...

At the time, the Army sought to purchase 2,800 Mk22 Mod 0 rifles by 2026. The M40A6 is a heavily modified version of the original M40, which fires a 7.62mm round and was first fielded during the ...