Adaptive Combat Rifle, is an updated version of the Masada Adaptive Combat Weapon System. Designed to replace the M16s, the ACRs are known to have the lowest recoil force among all assault rifles. It is extremely useful for long shootouts, which brings this rifle to number 3 position. It’s one of the smartest rifles ever made with its very particular damage-to-weight ratio which almost eliminates all recoil.