AK-47A weapon that has become the icon of the 21st century. Invented in  1947 it was named after its inventor, the Soviet icon Kalashankov. AK-47  stands for Automatic Kalashankove 47. AK-47 is he lord of war, it has  caused most deaths that a single weapon system produced ever. With over  75 million built worldwide, the AK-47 is a firearms legend that has  probably inflicted more lethal results than any other single weapon  system ever produced. The AK-47 was not only easy to produce and  relatively cheap, is also proved remarkably easy to maintain and  virtually immune to conditions that could easily take out other guns.  Accuracy is average, but the Kalashnikov compensates for this with its  ability to unleash a lethal wall of lead. AK-47 and M16 came face to  face in Vietnam war and AK-47 proved its supremacy. Even after almost 60  years,it could be heard spitting out shells in every corner of the  world.
M16And at number 2, its M16. Its a weapon that have seen the American  troops in the Vietnam war and into the 21ist century. It has proven to  be an outstanding performer with superb accuracy, handling, service  length and combat effectiveness. The rifle fulfilled the U.S. military’s  desire to develop a lightweight modern assault rifle that could replace  the semiautomatic M1 and M14. Its innovative features include lighter  metal alloy and plastic construction, a simple gas reload system and the  use of 5.56 mm ammunition, allowing soldiers to carry twice the amount  of ammunition for the same weight of 7.62 mm rounds.
LEE-ENFIELD SMLE
A true British classic, a standard infantry weapon of British troops  from WWI to the 1956 Suez crisis, the Lee-Enfield SMLE (pronounced  “smelly”) built its reputation on reliability, accuracy and a phenomenal  rate of fire. In the hands of a well-trained infantryman, the  Lee-Enfield could perform what was called the “mad minute,” i.e., thirty  rounds hitting a target 200 meters distant in one minute, a volume of  fire that rivals modern semiautomatic weapons.
FN FALAt number 4, its the Belgian hitting rifle FA FAL. Inspired by the  Sturmgewehr 44, the Belgian manufacturer Fabrique National developed  FAL. But later on it was modified for NATO and a heavy hitter designed  was created. Used in over 50 countries and an icon of the Cold War. This  heavy weapon has proved to be tough when used in fully automatic  mode.It as used by Australian army in the jungles of Vietnam and  Israeli’s used it during six day war and in the Falkland Islands.
MAUSER K98k CARBINEAnd here comes Hitler’s personal favorite Mauser. This super  performance gun originated from Germany. The original model 98 was used  during World War I to great effect, but when Germany started rearming in  the 1930s the rifle received upgrades that made it lighter and easier  to sight and shoot. Inevitably outgunned by automatic weapons, the  Mauser nevertheless stands as one of the legendary rifles of the modern  age.
1903 SpringfieldAmerican modified the German 7mm Mauser, added a few new features and  produced a lethal and deadly accurate rifle, the Springfield nicknamed  as silent death. It is a magazine-fed rifle that boasted phenomenal  accuracy. The rifle was in service through WWII in Korea and even used  as sniper rifle in Vietnam.
M-14 Combat RifleThe M14 rifle originated from United States and is formally called  United States Rifle, 7.62mm Caliber M14 is about 50 years old gun which  is still in use. It was standard U.S. rifle from 1959 to 1970. These  days its mostly used as a ceremonial gun. Prominent users of this gun  are Estonia, Argentina, Israel, South Korea and United States.