Full text of “M – Machine Gun Manual – TM ” . MB/MG – Designed as a tripod mounted or bipod supported machine gun for use by. The M, officially the Machine Gun, Caliber mm, M, is the US military designation for .. (×51mm NATO); Maximum effective range: 1, meters with tripod and T&E (the latest FM reads 1, m); Maximum range: 3, meters . MB, MM MACHINE GUN. JANUARY . *This publication supersedes FM , 29 February and FM ,. 26 January.

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For example, a US unit with attached British troops could supply replacement parts for the L7s, and vice versa.

When the bolt is held to the rear by the sear, he manually returns the cocking handle to the forward position, places the safety on “S. If gas regulator plug has been set to setting 2 or 3 to increase firing rate, take corrective action to return to primary setting m420b as soon as possible.

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M machine gun – Wikipedia

The tripod may be extended and collapsed without difficulty. A sear is used to time the internal mechanisms of the weapon to provide a consistent rate of rm, ensuring proper function and accuracy. If the gun does not fire, pull charger cable or cocking handle assembly rearward to lock bolt assembly back return cocking handle assembly to forward locked positionplace safety on “S” safe, then: However, firing from an open bolt also provides the possibility of an accidental discharge due to a bolt override.

Spare barrel must also be checked and cleaned before use. They can save your life. Depress spring pin and remove. If the item you need is not the same for different models t the equipment, a Usable On Code will appear on the right side of the description column on the same line as the m20b number. Fully seat extension assembly in place over the coax mantlet.


Place the gas collar over the front end of the gas regulator plug, while pushing against the spring, rotate counterclockwise until it stops.

If hm is a live round lodged in the barrel, the operator must immediately m40b if the barrel is hot enough that there is a chance of it cooking off. Do not fire dented cartridges, cartridges with loose bullets, or otherwise defective rounds. Decontamination procedures can be found in FM Place safety to “F” fire immediately prior to firing.

Dispose of live round s in accordance with local procedures. The barrels can be exchanged rapidly, thanks to a barrel release button located on the left side of the weapon.

The gunner wipes the weapon with warm soapy water if it is available. This list identifies items that do not have to accompany the machine gun and that do not have to be turned in with it. With clamp positioned over slots in extension assembly, tighten until strap is snug against the mantlet.

Rotate legs rearward, depress the bipod latch and engage the bipod leg hooks into the slots of receiver.

M240 machine gun

The gunner makes sure the weapon is cleared. Do not expose ammunition to the direct rays of the sun. Broken of damaged sear spring. When safety is placed to “F” fire, pull trigger sear will lower. A reply will be furnished to you. It comes configured for ground combat with a buttstock and bipod, though it can also be mounted on tripod, ground vehicles, aircraft, aboard ships and small boats.


This includes loading, unloading, cycle of functioning, adjustment of the sights, and use of both the bipod and tripod. Distribution authorized to U.

After cleaning, lubricating, and inspecting the weapon, the gunner assembles the weapon and performs a function check. With gas regulator downward and carrying handle in the vertical position, place barrel on the barrel support located on the gas cylinder.

Dust and other abrasives that collect on greasy ammunition may cause damage to the operating parts of the machine gun.

Push in latches to open cover assembly. When installing the barrel, move the barrel release slowly to the right and count the number of clicks. A hot, sunny day can cause a cook-off within 50 rounds, weapon and ammunition in the sun.

The illustrations will assist you with hard to identify items. If your ma chine gun does not perform as required, refer to Troubleshooting tWPl 00 l for possible malfunctions and corrective actions. Indicates the measure used in performing the actual maintenance function. Check for play in the front sight assembly by lightly clamping it between finger and thumb and attempting to move the sight m24b laterally. Therefore, the ttm must be kept clean, especially the gas system and chamber, during blank firing.

It differs from the buttstock of the LW by being half of its size in length, and doesn’t have a polymer cheek piece. The number 1 blade is 9.