From: archive copy at the Wayback Machine

National Infantry Museum, Case 444: Advanced Combat Rifle Customer Test - 1990

ACR program test rifles: (from top to bottom)

• AAI ACR w/ Optic.
• Heckler & Koch ACR.
• Steyr-Mannlicher ACR w/ Optic.
• Colt ACR w/ Optic.

Also in case:

• Steyr Flechette Cartridge Display Box.
• Colt 5.56 mm ACR Ammunition Display Box.

In a case on the bottom is: The First Production Model of the Colt M4 Carbine Rifle presented by Colt's Manufacturing Co., Inc. to United States Army Infantry Center, Fort Benning, Georgia.

This file has an extracted image: AAI ACR (cropped) at the National Infantry Museum.jpg.

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