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.[1]

Compact Personal Weapon
TypePersonal Defense Weapon
Submachine gun
Machine pistol
Place of originSingapore
Service history
In service2009-present
Production history
DesignerST Kinetics
Designed2008
ManufacturerST Kinetics
Specifications
Mass1.5 kg (3.31 lb)
Length500 mm (19.7 in) stock extended
350 mm (13.8 in) stock folded
Barrel length180 mm (7.1 in)
Cartridge9×19mm Parabellum
5.7×28mm
4.6×30mm
ActionLever-delayed blowback
Rate of fire900–1,100 rounds/min
Effective firing range100 m (9×19mm Parabellum)
Feed system30-round plastic box magazine
SightsNone; MIL-STD-1913 rail provided for optics[1]

Design details

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.[1] 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.[2][3]

The barrel and bolt assembly can be quickly replaced, converting the submachine gun to the small-caliber armor-piercing PDW ammunition.[4]

The CPW is fully ambidextrous. Every lever, control or toggle has been mirrored on the opposite side of the receiver – this includes the cocking handle, the fire control selector/manual safety switch (installed above the pistol grip) as well as the bolt release lever, which is used to slam the bolt closed after inserting a new magazine. The ejection port is located on the right side of the weapon.

The CPW has a collapsible metal stock that provides stability during aimed fire.[2] When collapsed, the weapon is not much larger than a conventional pistol, allowing for easy handling and concealment; the CPW can be carried in a holster.[2]

Two Picatinny rails are provided in the CPW for mounting sights and tactical accessories – one continuous rail runs across the top of the receiver and a second shorter accessory rail is installed under the barrel, in front of the trigger guard. The top rail can accommodate conventional iron sights or optoelectronic sighting devices such as reflex sights. The bottom rail is intended primarily for laser aiming modules, vertical grips and flashlights.

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See also

Notes
  1. "Modern Firearm's ST Kinetics CPW". Archived from the original on September 12, 2008. Retrieved 2008-09-14.
  2. "ST Kinetics" (PDF). Archived from the original (PDF) on 2008-12-30. Retrieved 2008-09-14.
  3. "ST Kinetics Showcases Defence And Disaster Relief Solutions At Eurosatory 2008". 2008-07-16. Archived from the original on February 11, 2009. Retrieved 2008-09-14.
  4. "ST Kinetics CPW ~ weapons and more". Archived from the original on 2012-05-24. Retrieved 2012-03-23.
  5. http://www.bdmilitary.com/forces-equipment/small-arms/submachine-guns/stk-compact-personal-weapon/
  6. https://web.archive.org/web/20191211191444/http://www.smallarmssurvey.org/fileadmin/docs/S-Trade-Update/SAS-Trade-Update-2019.pdf
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