Bren Light Machine Gun
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The Bren (from Brno, the Czechoslovak city of design, and Enfield, the location of the British Royal Small Arms Factory), usually called the Bren Gun, was a series of light machine guns adopted by Britain in the 1930s. While it is best known for its role as the British and Commonwealth forces' primary infantry light machine gun (LMG) in World War II.
The Bren was a modified version of a Czechoslovak-designed light machine gun, the ZB vz.26, which British Army officials had tested during a firearms service competition in the 1930s. The later Bren featured a distinctive curved box magazine, conical flash hider and quick change barrel.
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History
Development
The British Army adopted it in 1935 following extensive trials of the Czechoslovak ZB vz.26 light machine gun which was manufactured in Brno, although the ZB vz. 26 was not actually submitted for the trials, a slightly modified model was submitted; the ZB vz. 27. A license to manufacture was sought and the Czech design was modified to British requirements. The major changes were in the magazine and barrel. The magazine was curved in order to feed the rimmed .303 British cartridge, a change from the various rimless Mauser-design cartridges used to date, such as the 7.92 mm Mauser round. These modifications were categorized in various numbered designations, ZB vz. 27, ZB vz. 30, ZB vz. 32, and finally the ZB vz. 33, which became the Bren.
A gas-operated weapon, the Bren used the same .303 ammunition as the standard British rifle, the Lee-Enfield, firing at a rate of between 480 and 540 rounds per minute (rpm), depending on model. Each gun came with a spare barrel that could be quickly changed when the barrel became hot during sustained fire, though later guns featured a chrome-lined barrel which reduced the need for a spare. The Bren was magazine-fed, which slowed its rate of fire and required more frequent reloading than British belt-fed machine guns such as the larger .303 Vickers machine gun. However, the slower rate of fire prevented more rapid overheating of the Bren's air-cooled barrel, and the Bren was several pounds lighter than belt-fed machine guns. Because it was more easily portable, it could be fired on the move and from standing positions. The magazines also prevented the ammunition from getting dirty, which was more of a problem with the Vickers with its 250-round canvas belts.
Combat
In general, the Bren was considered a reliable and effective light machine gun, though in North Africa it was reported to jam regularly unless kept very clean and free of sand.
Its 30-round magazine was in practice usually filled with 28 or 29 rounds to prevent jams and avoid wearing out the magazine spring. Care needed to be taken with magazine loading to ensure that the .303 cartridge rims did not overlap the wrong way, causing a jam. The rounds had to be loaded the correct way, each round ahead of the previous round. There was also a 100-round drum magazine available for the Bren used in the anti-aircraft role.
The Bren was officially operated by a two man crew: a gunner to fire and carry the Bren, and a reloader to reload the gun and replace the barrel when it overheated—the latch in front of the magazine was rotated to unlock the barrel so that it could be replaced: the carrying handle was used to grip the hot barrel without risk of burning. The reloader carried extra ammunition and barrels. During wartime, however, the two-man crew concept was abandoned and the weapon was commonly operated by one man, the gunner.
The Bren had an effective range of around 600 yards (550 m) when fired from a prone position with a bipod. Initial versions of the weapon were sometimes considered too accurate because the cone or pattern of fire was extremely concentrated, resulting in multiple hits on one or two enemies, with other enemy soldiers going untouched. More than a few soldiers expressed a preference for worn-out barrels in order to spread the cone of fire among several targets. Later versions of the Bren addressed this issue by providing a wider cone of fire.
For a light machine gun of the interwar and early WWII era the Bren was about average in weight. On long marches in non-operational areas it was often partially disassembled and its parts carried by two soldiers. Writing about his experiences in the infantry during the Burma campaign, the author George MacDonald Fraser stated that one Bren gun was issued to each eight-man section. One soldier would be the gunner and another would be his 'number two', who would carry extra ammunition and the spare barrel and change magazines in combat. The top-mounted magazine vibrated and moved during fire, making the weapon more visible in combat, and many Bren gunners used paint or improvised canvas covers to disguise the prominent magazine.
Realizing the need for additional section-level firepower, the British Army endeavored to issue the Bren in great numbers, with a stated goal of one Bren to every four private soldiers.
The Bren was also used on many vehicles as well, including Universal Carriers to which it gave the alternative name "Bren Gun Carrier", on tanks, and armored cars. However, on tanks it was not used in the co-axial role but on a pintle mount. The co-axial requirement was filled by the Vickers or the BESA, the latter being another Czech machine gun design adopted by the British.
It was popular with British troops who respected the Bren for its reliability and combat effectiveness. The quality of the materials used would often ensure minimal jamming. When the gun did jam or had some foreign object stuck in it, the operator could adjust the four-position gas regulator to feed more gas to the piston increasing the power to operate the mechanism. It was even said that all problems with the Bren could simply be cleared by hitting the gun, turning the gauge, or doing both. Note that the barrel needed to be unlocked and slid forward slightly to allow the regulator to be turned.
The Bren's direct ancestor, the Czechoslovak ZB vz. 26, was also used in WWII by German forces, including units of the Waffen SS. Many 7.92 mm ZB light machine guns were shipped to China where they were employed first against the Japanese in WWII, and later against UN forces in Korea, including British and Commonwealth units. Some ex-Chinese Czech ZB weapons were also in use in the early stages of the Vietnam conflict.
Tactics & Tips
- Vastly improves Infantry Section damage output at all ranges.
- The Bren LMG boosts the anti-infantry fighting ability of your Infantry sections and can deal with most Panzer Elite vehicle threats.
- Note: Bren LMG's only work when your Infantry Section is immobile. Whenever you send them to fight an enemy, use the attack-move command.
