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The M240 machine gun, officially the Machine Gun, 7.62 mm, M240, is the U.S. military designation for the FN MAG, [6] a family of belt-fed, gas-operated medium machine guns that chamber the 7.62×51mm NATO cartridge. [1] The M240 has been used by the United States Armed Forces since the late 1970s.
For example, the US Army and Marines now use the FN MAG (as the M240 machine gun), which is generally called the "M240 medium machine gun". It was originally adopted for vehicle mounting in the late 1970s, but its higher reliability resulted in the infantry adopting it for use over the M60 machine gun , despite it being several pounds heavier.
M240B is a modernized derivative of the M240G, which features a perforated hand-guard and heat shroud, a MIL-STD-1913 rail integral with the receiver top cover, which enables the use of optical day and night sights, a new synthetic stock and a new ammunition container.
These quantitative properties may be used as a metric by which the benefits of one material versus another can be compared, thereby aiding in materials selection. A property having a fixed value for a given material or substance is called material constant or constant of matter. [1]
Strange matter: A type of quark matter that may exist inside some neutron stars close to the Tolman–Oppenheimer–Volkoff limit (approximately 2–3 solar masses). May be stable at lower energy states once formed. Quark matter: Hypothetical phases of matter whose degrees of freedom include quarks and gluons Color-glass condensate
A U.S. Army graphic detailing the competitors for the program as of December 2020. The Next Generation Squad Weapon (NGSW) program is a United States military program created in 2017 by the U.S. Army to replace the 5.56mm M4 carbine, the M249 SAW light machine gun, and the 7.62mm M240 machine gun, with a common system of 6.8mm cartridges and to develop small arms fire-control systems for the ...
It combined the 2K11 Krug chassis with a modified version of the 240 mm M240 mortar, the 2B8 developed by Yuri N. Kalachnikov at the Perm Machine Building Plant. [1] It was introduced into the Soviet Army in the early 1970s as the 2S4 Tyulpan ("Tulip"), reaching full operational status in 1975, being designated by Western intelligence as the M ...
The M240B, however, weighs in at a considerable 27.5 lb (12.5 kg) and is about 49 in (120 cm) long with the standard barrel. NAVSPECWAR was reluctant to give up the increased portability of the M60 (which weighed 22.5 lb (10.2 kg) with an overall length of 37.7 in (96 cm) in its shortest configuration) in spite of the M240B's increased reliability.