page_title: Advanced Combat Rifle
section_title: Phase III
hierarchical_section_title: Advanced Combat Rifle / Phase III
context_page_description: The Advanced Combat Rifle was a United States Army program, started in 1986, to find a replacement for the M16 assault rifle. Under the stress of battle the average soldier with an M16 may shoot a target at 45 meters, but hit probability is reduced to one out of ten shots on target by 220 meters. Because of this, the ACR program was initiated in the late 1980s to create a weapon that could double the hit probability. The ACR program was preceded by older programs such as the Special Purpose Individual Weapon. The program ended in 1990 after an expenditure of approximately US$300 million.
context_section_description: Phase III began in August 1989, when AAI, Colt, HK, and Steyr entered weapon testing.
caption: From top to bottom, ACR test rifles from AAI, HK, Steyr, and Colt
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