A spring in the feed tray cover pushed the extractor-ejector down onto the next round, so if the feed tray cover was opened, the extractor-ejector would be pulled upwards if the belt needed to be removed. (2005). Browning modified the M1917 to be air-cooled by making changes that included dropping the water jacket and using a heavier barrel.[10]. Most other machine gun designs would be fired in the same way, even though most feature quick change barrels and fire from an open bolt, two features that make air-cooled machine guns capable of sustained fire, and features that the M1919 design lacked. [citation needed], The original M1919 was designed for use with tanks. 1 Description 1.1 Variants 2 History 3 References It was derived from the earlier Browning M1917 which was water cooled. Fixed vehicle mounts were also employed. The Mk 21 Mod 0 was a US Navy conversion of the .30 M1919A4 to fire the 7.62mm NATO cartridge. In total there were six variants of the basic M1919 machine gun. The M1919A4 .30 caliber machine gun is recoil operated, belt fed, and air cooled. It had a rate of fire of 1150 rounds per minute.[10][11]. Similar "semi-auto machine guns" have been built using parts from other Browning pattern machine guns, to include the AN/M2 aircraft gun and FN30, and variations that never saw military use such as extremely short (8") barreled guns. An Aviation Ordnanceman stationed at the Naval Air Station Corpus Christi installing an AN-M2 Browning machine gun in a PBY flying boat, ca. Gunners were taught to cock the gun with the palm facing up, so that in the event of a cook-off, their thumb would not be dislocated by the charging handle, and to seize the ammunition belt and pull to prevent it from feeding, if the gun ever started an uncontrollable cycle of cooking off. This was accomplished by replacing the barrel, bolt, and feed cover and adding a chamber bushing, a link-stripper, and a second belt-holding pawl to allow it to feed and fire the new cartridge. A metal M1 link was later adopted, forming a "disintegrating" belt. Articles with unsourced statements from June 2014, Articles with unsourced statements from January 2014, Articles with unsourced statements from March 2014, Articles with unsourced statements from December 2014, Articles with unsourced statements from August 2014, Articles incorporating text from Wikipedia, World War II infantry weapons of the United States, World War II firearms of the United States, Browning Machine Gun, Cal. The "island" prevents the insertion of unmodified full-automatic parts. The Browning 1919A4 was the definitive U.S. MG of WWII. In the UK, production was chiefly by BSA. The gun was aimed using iron sights, a small folding post at the front end of the receiver and a rear aperture sight on a sliding leaf with range graduations from 200 to 1,800 meters in 200 meter increments. [9] It featured a relatively heavy barrel, attempting to match the sustained fire capability of contemporary water-cooled machine guns. It was belt-fed, with a normal belt containing 75 rounds; it also used a pistol-esque grip and odd, yet functional iron sights. The gun's original design was as a water-cooled machine gun (see the M1917 Browning machine gun). To aim the gun along its vertical axis, the adjustment screw needed to be operated. A trial variant fitted with special sighting equipment was designated M37F. In 1919 the M1917 machine gun underwent a major modification, trading its water cooling mechanism for air cooling. Another version of the M1919A4, the M1919A6, was an attempt to make the weapon into a true light machine gun by attaching a bipod, buttstock, carrying handle, and lighter barrel (4 lb (1.8 kg) instead of 7 lb (3.2 kg)). Comes with links, mini link loader and manual. It’s been modernized, now using disintegrating link belts instead of old-fashioned cloth belts. Learn how and when to remove this template message, recoiled to the rear of the gun upon firing, Browning Machine Gun, Cal. Two Marines with a M1919A4 on Namur Island during World War II. Please improve this article by adding a reference. 2900.00. This weapon was designed to allow greater mobility to cavalry units over the existing M1917 machine gun. The M1919A4 played a key role in the firepower of the World War II U.S. Army. If the gun was very hot from prolonged firing, the cartridge ready to be fired could be resting in a red hot barrel, causing the propellant in the cartridge to heat up to the point that it would ignite on its own without warning. As a result, the M2 weighed two-thirds that of the 1919A4, and the lightened mechanism gave it a rate of fire approaching 1,200 rpm (some variants could achieve 1,500 rpm),[6] a necessity for engaging fast-moving aircraft. The M1919 Browning was an American general purpose machine gun designed in 1919 by John Browning, as an air-cooled development of the earlier M1917 Browning.It was a belt fed machine gun, usually used mounted on a bipod or tripod. A trial variant fitted with special sighting equipment was designated M37F. [33] The Flexible mount machine gun came with grips and a "butterfly" trigger plate like the standard ground model. The cocking handle was pulled and released a second time. Later followed in the 1920s by an innovative air-cooled design (the M1919), the Browning … When folded down, the aperture formed a notch that could be used to fire the gun immediately without flipping up the leaf. Browning did not work on the gun again until 1910, when Browning built a water-cooled prototype of the 1900 design. Loading was accomplished by inserting the pull tab on the ammunition belt from the left side of the gun - either metal links or metal tab on cloth belts - until the feeding pawl at the entrance of the feed way engaged the first round in the belt and held it in place. The United States Navy also converted many to 7.62mm NATO, and designated them Mk 21 Mod 0; they were commonly used on river craft in the 1960s and 1970s in Vietnam. [13] The M37E1 was to be standardized as the M37A1 but development of the improved M73A1 precluded this. In the late 1940s and early 1950s the US military was looking for an upgrade to the M1919 that could feed from either side for use as an improved coaxial machinegun. Fixed vehicle mounts were also employed. Argentina used Colt-manufactured guns chambered for the standard Argentine 7.65×53mm cartridge. 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