Carl Gustaf m/45

Kulsprutepistol m/45 (Kpist m/45)
U.S Soldier with m/45 SMG during special weapons training. Notice the incorrect forward handgrip.
Type	Submachine gun
Place of origin	Sweden
Service history
In service	1945 - March 2007
Used by	Chile, Egypt, Estonia, Indonesia, Ireland, Japan, South Vietnam, Sweden, United States
Wars	Vietnam War Congo Crisis Israeli-Arab conflict
Production history
Designed	1944
Manufacturer	Carl Gustafs Stads Gevärsfaktori Shin Chuo Kogyo (Japan) Smith & Wesson (United States)
Produced	1945 to 1964 (Sweden) 1965 - 1970 (Egypt) 1965-1967 (Japan)
No. built	approx. 300,000
Variants	m/45, m/45B, m/45C, m/45D, m/45S, Swedish K (with silencer), Port Said, Akaba, SCK-65/66
Specifications
Mass	3.35 kg without magazine
Length	550/808 mm
Barrel length	212 mm
Cartridge	9x19mm Parabellum
Action	blowback
Rate of fire	600 round/min
Muzzle velocity	420 m/s
Effective firing range	200m
Feed system	36, 50 rounds

This article is about the submachinegun. For information on the electronic band, see Kpist (band)

Kulsprutepistol m/45 (Kpist m/45) also known as the Carl Gustav M/45 or the Swedish K SMG, is a 9 mm Swedish sub machine gun adopted in 1945 (hence the designation m/45) at the Carl Gustaf G-F facility in the city of Eskilstuna by Swedish weapons designer Gunnar Johnsson. The m/45 was the official sub machine gun of the Swedish Army after World War II. The m/45 was also used by U.S Special Forces in the Vietnam War, these weapons were devoid of markings. In U.S service it was known as "K-Rifle" or "Swedish-K".

The m/45 was developed in 1944-45 lending and improving many design elements from earlier sub machine guns. The sheet metal stampings used in manufacturing the German MP40, the British Sten, the Soviet PPSh-41 and PPS-43 were studied in detail. A prototype version was ready for testing in 1944 and the first production version was adopted in 1945.

Features

The m/45 is a fully automatic weapon. It weighs 3.9 kilograms and is 808 millimeters in length with stock extended and 550 mm when folded. It fires from an open bolt. Its relatively slow cyclic rate of fire and low recoil makes it easy to control during full automatic fire. It is accurate to 200 meters.

A special barrel for firing blank cartridges is available for the m/45. It should only be used with blanks and lower powered indoor (black bullet) ammunition. When firing blanks a blank firing adapter must be attached to the barrel. Other accessories include, night sights that clip on to the regular sights, a brass catcher to collect spent cartridges for reloading/recycling and a speed loader that can load a 36-round magazine in about six seconds.

The magazine is wider in the rear than the front; this allows the cartridges to move despite dust and sub-zero temperature conditions, making it very reliable. Magazines that have parallel sides are much more likely to jam under cold conditions. The same type of magazine is used by the Czech model 23 and model 25 and the French MAS.

An interesting difference between the m/45 and most modern self loading pistols and rifles is that it is carried with the bolt in a retracted position and an empty chamber. When the trigger is pulled, the bolt charges forward, pulls a cartridge from the magazine, chambers and fires it. This results in a lock time so long that the shooter actually notices the split second between the release of the sear and the discharge of the bullet.

Variants

• m/45 or m/45S - First production version. This version is equipped with a magazine support that can be detached by removing a clip. Can use the m/37-39 50-round magazine and the 36-round magazine. Most were converted over time by permanently attaching the magazine support with rivets.
• m/45B - General production version
• m/45C - The model designation refers to the barrel sleeve. The m/45C was used for parades and guard duty, the only difference from the standard m/45 being the barrel sleeve with a mounting point for a bayonet
• m/45D - Used by Swedish Police, has a selector for semi and full automatic fire. On some weapons the stock was modified to allow for use with a riot helmet with visor.

Users

The Swedish armed forces have phased out the m/45 from inventory, small numbers may remain in use by some Swedish Home Guard units. Small numbers of the m/45D may also remain in Swedish Police armories. The m/45 has been manufactured under license in Indonesia and Egypt as the Port Said. Smith & Wesson in the USA also made a copy of the gun under the name Smith & Wesson M76. It was also manufactured by the MK Arms company as the Mk-760. The m/45 was also used as a base for the Intratec TEC-DC9. In Japan, it was made under license as the SCK 65 and SCK 66 (SCK - Shin Chuo Kogyo) for use by the Japanese Self-Defense Forces. It had the additional features of the Madsen M-50 safeties, the pistol grip of the Sten Mark IV with the ejection port and cocking lever based on the M3A1 submachine gun . The difference between the two is that the SCK 65 fires at 550 RPM with the SCK 66 at 465 RPM.

The Irish Army used the M/45 during the Congo Crisis, the Lebanon Conflict and during the Troubles. It was popular in service, and was removed from service with the introduction of the Steyr AUG, which was short enough to perform the submachine gun role.

The m/45 was used in combat, like in Irish service, by Swedish UN troops during the Congo Crisis.

During the Vietnam War, the M/45 was used extensively by the US Navy SEALs, as it was very reliable and could fire close to immediately out of the water. The Navy grew so fond of the weapon, that so when Sweden halted weapons export to the United States in 1966, the American arms manufacturer Smith & Wesson were tasked with producing a near-identical copy of the M/45, designated the M76. Though by the time the M76 was ready for combat, most Navy direct-action missions had ceased in Asia

See also

• Tec 9
• MGP-84

External links

• Modern Firearms - Carl Gustaf Kp M/45 submachine gun