The G3 rifle is a 7.62×51mm NATO battle rifle developed in the 1950s by the German company Heckler & Koch. It is known for its reliability, accuracy, and robust design, making it a popular choice among military forces around the world. The G3 operates on a roller-delayed blowback system, which helps reduce recoil and improve shooting control. The rifle features a selective fire option, allowing users to switch between semi-automatic and fully automatic modes. Its effective range is approximately 400 meters, and it can be equipped with various accessories, including scopes and grenade launchers, enhancing its versatility in combat situations.