The Mk.48 (or: Mark 48) Machine Gun is a modern Belgian-American light machine gun of 7.62 mm caliber. The first rifles of this type entered service in 2003 and are still in service. The weight of the empty rifle is about 8.2 kilograms, and its length is almost 100 centimeters. The rate of fire of the Mk.48 is 710-760 rounds per minute. The effective range of the shot is about 800 meters, with a maximum range of 3600 meters. The Mk.48 rifle was developed by the FN Herstal company and is manufactured in the United States (in South Carolina) for the needs of the American armed forces, including special forces. The Mark 48 is to complement the M60 rifles, and in special units to replace this type of weapon altogether. The new rifle is lighter and smaller than the M60, and has a higher rate of fire and a similar effective and maximum range. To date, two types of this rifle have been created: Mk.48 Mod 0 and Mk.48 Mod 1, which differ from each other, among other things, in weight and barrel length.US Navy SEAL (full name: United States Navy Sea, Air and Land) is the name of a special unit serving within the United States Navy. It was formed by a special order of President John F. Kennedy in May 1961, but it dates back to the World War II special unit of the US Navy called UDT (UDT). Underwater Demolition Team). Originally soldiers US Navy SEALs were trained primarily to operate in the aquatic and semi-terrestrial environment, with particular emphasis on the control of enemy ships and ships. Currently, it is a versatile special unit also used in land and surface-air operations. It is also used in anti-terrorist activities or to conduct the so-called special reconnaissance. Each soldier of the formation must undergo a very demanding 41-week training, after which he receives the so-called SEAL trident. Soldiers of this formation took part in many conflicts, including: the Vietnam War (1964 / 1965-1975), both the Persian Gulf Wars (1990-1991 and 2003) or the operations in Afghanistan (from 2001).