Adcor Defense was founded in 2000 in Baltimore, Maryland, with the goal of producing high-quality firearms for both civilian and military markets. The company gained national attention as a contender in the US Army Individual Carbine Competition, showcasing its commitment to innovation and excellence. Although the competition was ultimately canceled, Adcor Defense continued to focus on developing and manufacturing the ADCOR A-556 ELITE rifle for commercial customers. The company has also expressed willingness to support military improvement programs, including the M4 Product Improvement Program. Adcor Defense prides itself on its American-made products and its dedication to advancing firearm technology.