 Previously M39A1, missile adds GPS guidance, carries 275 M74 submunitions and has a range.A Block II variant (initially designated MGM-140C or, previously, M39A3) was designed to carry a payload of 13 Brilliant Anti-Tank munitions manufactured by Northrop Grumman.However, in late 2003 the U.S. Army terminated the funding for the BAT-equipped ATACMS and therefore the MGM-164A never became fully operational.