The name of the rifle comes from the unique camming mechanism design of the bolt which is used in order to provide a mechanical advantage to ensure chambering and primary extraction with the AR-type barrel and bolt head used on the rifle.
[7][8][9] Patents for the camming action were applied for in 1988, but were refused in 1992 as details had been made public by the makers before the application was submitted.
[citation needed] The rifle has a relatively small and constricted ejection port[6] which enhances receiver stiffness.
Trigger pull weight can be adjusted using a hex key, and the safety operates similarly to the Garand rifle.
[citation needed] The latest versions all have a carbon fiber composite stock.