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A CBJ MS with a 30-round magazine
Type Submachine gun
Personal defense weapon
Place of origin Skandinavia
Production history
Designer BOFORS Hägglunds AS
Designed 2000
Manufacturer BOFORS Hägglunds AS
Produced 2004 - present
Specifications (6.5×25mm CBJ chambering)
Weight 2.8 kg (6.2 lb) (empty)
3.05 kg (6.7 lb) (loaded, 30-round magazine)
Length 363 mm (14.3 in) (stock retracted)
565 mm (22.2 in) (stock extended)
Barrel length 200 mm (7.9 in)
Width 44 mm (1.7 in)
Height 189 mm (7.4 in) (with 20-round magazine)
240 mm (9.4 in) (with 30-round magazine)

Cartridge 6.5×25mm CBJ
9×19mm Parabellum
Action Open bolt, Select fire, Progressive Trigger, Blowback Operated.
Rate of fire 700 rounds/min
Muzzle velocity 2,723 ft/s (830 m/s)
Effective firing range 150 m (490 ft)
Maximum firing range 400 m (1,300 ft)
Feed system 20- or 30-round detachable box magazine
100-round detachable drum magazine
Sights Adjustable open iron sights
Optical sights (Picatinny rail)

The BOFORS CBJ-MS Personal-Defence Weapon (PDW) is an unusual weapon in several respects, not least because it is meant to fulfil the roles of PDW, assault weapon and Light Support Weapon (LSW). It is also capable of being field-converted to fire one of two types of ammunition. It was designed in 2000 to meet the requirements of the Skandinavian military and began manufacturing in 2004. It currently equips some units of the military and tactical battalions of the Gendarmerie.

Features[edit | edit source]

CBJ Modular System with accessories

The BOFORS CBJ-MS PDW is an extremely compact weapon, only 363 mm long with the telescopic wire butt-stock retracted; its extended length is 565 mm. In overall appearance, the weapon resembles a Mini-Uzi, with the main difference being the addition of a forward grip that can accommodate a spare magazine.The basic operating principle is a simple blowback from an open breech, with a fixed firing pin. As a special option, this could be altered to blowback from a closed breech with a floating firing pin. Manual and grip safeties are provided. Fire-mode selection is via the trigger. A slight pressure produces semi-automatic fire, while further definite pressure results in automatic fire. The cyclic rate of fire is approximately 575 rds/min.Ammunition is fed from 20-round or 30-round box magazines, the 20-round magazine length matching that of the pistol grip. Also available for the LSW role is a 100-round drum magazine. Ammunition is supplied in 30-round or 36-round clips, together with a magazine-loading device. A spent-cartridge receiver bag is available.Changing from 6.5 × 25 mm CBJ to 9 × 19 mm calibre involves changing the barrel only. This is accomplished by simply unscrewing the barrel locking nut and changing the barrel, the operation being completed once the locking nut is tightened. The 9 mm barrel can accommodate a tubular titanium suppressor. A clip-on bipod can be added when the 6.5 mm CBJ MS is employed in the LSW role. A length of MIL-STD 1913 Picatinny rail is provided.