The M1911 pistol was first developed in the 1890s. It was a suitable self-loading pistol that replaced the revolvers in service. A semiautomatic single-action, recoil-operated magazine fed firearm that was chambered with .45 ACP cartridges. The M1911 went on to serve the United States Military as a standard issue sidearm between 1911 and 1986.
The Dragunov Sniper Rifle:
This semi automatic Sniper, Dragunov, is the model of 1963. A semi-automatic marksman rifle chambered with 7.62×54mmR that was developed by the Soviet Union. Primarily designed as a long ranged squad-support weapon, according to Soviet military doctrines, the ability to engage at long range was outside the scope of ordinary troops, this lead to the adoption of Dragunov.