Abstract: A sliding lock barbell adapter is disclosed. The adapter is configured to quickly convert a standard barbell into one that can perform multiple exercises safely and with proper form. The adapter is preferably made from tubular steel with a lower and upper jaw positioned in a unique manner allowing for proper body form and comfort while exercising with reduced risk of injury. The positioning of the jaw allows for the spring-loaded locking pins to pivot the bar in place. Additionally, foam interior padding increases slip resistance and comfort.