The Maschinengewehr 34, or MG34, was a German machine gun that was first produced and accepted for service in 1934, and first issued to units in 1935. It was an air-cooled machine gun firing 7.92x57mm Mauser rounds and had similar performance to other medium machine guns.

However, it was also designed to perform both as a light machine gun and also in heavier roles, in an early example of a general purpose machine gun. In the light role, it was intended to be equipped with a bipod and 50-round belt contained in a drum-shaped ammo basket, which attached to the receiver. In the heavier role it was mounted on a larger tripod and was belt-fed. In practice the infantry usually just belt-fed the bipod version, resulting in it functioning as a classic medium support weapon.

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PKM

Type	General purpose machine gun
Place of origin	Soviet Union
Service history
In service	1965-present
Used by	See Users
Production history
Designer	Mikhail Kalashnikov
Designed	Ca early 1960s
Number built	over 1,000,000
Variants	PK, PKS, PKT, PKM, PKMS, PKP
Specifications
Weight	PK: 9 kg (19.84 lb) (gun + integral bipod) + 7.7 kg (16.98 lb) (tripod). PKM: 7.5 kg (16.53 lb) (gun + integral bipod) + 4.5 kg (9.92 lb) (tripod). PKT (tank): 10.5 kg (23.15 lb)
Length	PK - 1,173 mm (46.2 in) PKM - 1,160 mm (45.7 in) PKT - 1,098 mm (43.2 in)
Barrel length	PK - 658 mm (25.9 in) PKM - 645 mm (25.4 in) PKT - 772 mm (30.4 in)
Cartridge	7.62x54mmR
Action	Gas-Operated, open bolt
Rate of fire	PK, PKM ,PKP : 650 round/min. PKT: 800 round/min
Muzzle velocity	PK, PKM, PKP: 825 m/s
Effective range	100—1,100 m sight adjustments [1]
Feed system	Belts in 100/200/250 round boxes
Sights	Open sights

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RPK-74

Tipe	Senapan mesin ringan
Negara asal	Uni Soviet
Sejarah pemakaian
Digunakan	1961–sekarang
Pemakai	Rusia, Polandia, Tiongkok, Romania, Yugoslavia, Jerman Timur
Perang	Perang Vietnam, Perang Afganistan
Sejarah produksi
Tahun	1961
Diproduksi	1961–1978
Varian	RPK, RPKS, RPKSN
Spesifikasi
Berat	5 kg
Panjang	1.040 mm
Panjang laras	591 mm
Peluru	7.62 x 39 mm M43
Kaliber	7.62 mm
Mekanisme	Operasi gas, bolt berputar
Kec. tembak	600 butir/menit
Kec. peluru	745 m/s
Pengisian	Magazen box 30 atau 40 butir Magazen drum 75 atau 100 butir

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SM-3

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Browning Machine Gun, Cal. .50, M2, HB

Type Heavy machine gun
Place of origin United States
Service history
In service 1921
M2HB from 1923–present
Used by United States, and several others
Wars World War II, Korean War, Vietnam War, Cambodian Civil War, Falklands War, Desert Storm, Somali Civil War, Iraqi Freedom, Operation Enduring Freedom, South African Border War
Production history
Designed 1918[1]
Produced 1933–present (M2HB)
Specifications
Weight 38 kg (84 lb), 58 kg (128 lb) with tripod and T&E
Length 1650 mm (65 in)
Barrel length 1143 mm (45 in)

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Cartridge .50 BMG
Action Short recoil-operated
Rate of fire 450–600 rounds/min (M2HB)
750–850 rounds/min (AN/M2)
1,200 rounds/min (AN/M3)
Muzzle velocity 2,910 feet per second (M33 Ball) (887.1 m/s)
Feed system Belt-fed (M2 or M9 links) Selengkapnya...

XM312

Type :Heavy machine gun
Place of origin :United States
Service history:
In service :unknown
Production history:
Designer :General Dynamics/Joint Services Small Arms Program
Designed :2000
Manufacturer :General Dynamics
Produced :2004
Variants :XM307
Specifications:
Weight :52 lb. (19kg)
Length :61.42 in. (1,560 mm)
Width :9.84 in. (250 mm)
Height :7 in. (180 mm), 18 in. (46 mm) adjustable tripod
Crew :2

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Cartridge :12.7 × 99 mm NATO/.50 BMG
Caliber :12.7mm
Action :"Recoil-reducing action" (modified rotating bolt)
Rate of fire :260 rpm (4.3 Hz)
Maximum range :lethal and suppressive to 2000 meters
Feed system ;Belt-fed
Sights :Open, optics may be mounted. Selengkapnya...