Players of Call of Duty and Battlefield will be familiar with the Adaptive Combat Rifle. Developed as a replacement for the M4 Carbine, the ACR was touted as the rifle of the future. Marketing material flaunted the system’s ability to quickly change calibers. However, most of these quick-change kits, and the rifle’s full potential, never materialized.
The ACR has been widely featured in video games and movies (Infinity Ward)
The ACR was initially developed by Magpul Industries as the Masada in 2006. Two years later, Bushmaster Firearms International licensed the design from Magpul.