Carl Gustav M/45

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.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.

Carl Gustav M/45
Class Manportable
Type Machine Guns
Manufacturer Carl Gustav
Origin Sweden
Country Name Origin Year
Sweden 1944
Country Name Operational Year Retirement Year
Sweden View
ManufacturerName Production From Production To Quantity
Carl Gustav View


First production: the SMG models Kpist m/45 and Kpist m/45S featured a detachable (via removable clip) magazine support. It accepted the m/37-39 50-round "coffin" magazine and the later standard 36-round box magazine. Over time, most first production m/45's were converted by permanently riveting the magazine support to the receiver. The m/45 had a dark gun metal finish.

General production: the m/45B model features a fixed magazine support, smaller holes in the barrel shroud, a strengthened bolt buffer (in the receiver-rear), and a hook securing the buffer cap in place. Early m/45B models had the same metal finish as the m/45 but most had a grey-green lacquer finish.

Ceremonial and in UN/ONU: the m/45C is an m/45B with a bayonet mount on the barrel sleeve which was used for parade and guard duties. During the Congo Crisis in the 1960s, the Swedish UN forces used the C version extensively. The standard m/45 and m/45B have no bayonet mount.

Police: The Swedish police had the m/45 as a reinforcement weapon in their organization, but it was unlike the military model equipped with a switch for fully automatic or single shot. The police model designation was m/45BE (E = enkelskott/single-shot) and BET (T = tårgas/tear gas). The BET model become later escrow to the switch so that only single shot could be fired. BE model had the same finish as the military m/45 (black oxidized), but could be painted in black if the old finish had become too worn. It also received a modified stock in mid / late 70's (m/75) with a removable upper cheekpiece that allows the operator to wear a visored riot protection helmet (Huvudskydd m/69). BET model was painted black and would only be used to fire a tear gas canister(Tårgaskastspray m/74). To be able to shoot away the canister, a special propellant cartridge (9mm lös ptr m / T) had to be used. A red sticker on the left side of the weapon reminded the operator that they could only use that kind of ammunition. It also had a high front sight and an adjustable rear sight (30, 45 and 60 meters). The m/45 BET was repaced by Heckler & Koch MZP 1 (HP 40) in the early /mid 1990s because it was considered unfashionable and new tear gas canister was difficult to come by after that it contained the hazardous substance, Freon 12.

Weight - 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 range - 200m

Feed system - 36, 50 rounds

End notes