ST Kinetics CPW

The CPW (Compact Personal Weapon) is a multi-caliber submachine gun developed by ST Kinetics of Singapore as a PDW-class firearm. The prototype is chambered in 9×19mm Parabellum but the manufacturer assures that the weapon's modular design allows for a simple caliber conversion to either 5.7×28mm or 4.6×30mm.

ST Kinetics CPW
Class Manportable
Type Machine Guns
Manufacturer Singapore Technologies Kinetics Ltd (ST Kinetics)
Origin Singapore
Country Name Origin Year
Singapore 1990
ManufacturerName Production From Production To Quantity
Singapore Technologies Kinetics Ltd (ST Kinetics) 1990 View

The CPW is a modular selective fire lever-delayed blowback operated weapon (using what STK calls a cam recoil mitigation mechanism), which contributes to the low felt recoil and allows for use with high pressure ammunition. The weapon has a conventional submachine gun layout with the magazine housed in the pistol grip. The pistol grip's backstrap and the 30-round magazine are molded from a translucent plastic which allows the shooter to quickly verify the remaining level of ammunition visually. The receiver is machined from a lightweight aluminum alloy and most of the other components are made of a high-strength polymer to further reduce weight and costs.

The barrel and bolt assembly can be quickly replaced, converting the submachine gun to the small-caliber armor-piercing PDW ammunition.

Type Personal Defense Weapon
Submachine gun
Place of origin Singapore
Production history
Designer ST Kinetics
Manufacturer ST Kinetics
Weight 1.5 kg (3.31 lb)
Length 500 mm (19.7 in) stock extended

350 mm (13.8 in) stock folded
Barrel length 180 mm (7.1 in)
Cartridge 9×19mm Parabellum


Action Lever-delayed blowback
Rate of fire 900–1,100 rounds/min
Effective firing range 100 m (9×19mm Parabellum)
Feed system 30-round plastic box magazine
Sights None; MIL-STD-1913 rail provided for optics

End notes