The initial development of the QBS-09 dates back to 1989, with the project officially established in 2005. Multiple prototypes were created between 2005 and 2007, including one featuring an internal tube design and a conventional magazine-fed design.[1]
The QBS-09 is a gas-operated, rotating bolt shotgun. The adjustable gas block provides three-position adjustments for off, normal, and adverse environments. The magazine spring and carrier are of conventional pump-action design, but the weapon features a bolt hold-open function, with the bolt release button located on the right side above the loading port.[1]
The QBS-09 uses specifically designed DBD-09 18.4mm tungsten alloy anti-personnel buckshot. The round is loaded with 14 pellets of high-density tungsten alloy buckshot set into a plastic container with a steel case. Tungsten alloy is used because the penetration level of the lead pellets was unable to meet the PLA requirement. Each pellet is made of a tungsten alloy ball of 5.3mm (~0.2“) in diameter, 1.4 grams (~22 grains) in weight. The length of the round is 65mm, and the whole round weighs 44 grams. The muzzle velocity is reported at 420 m/s (1380 fps), with an effective range of up to 100 meters.[2][3]
The Type 10 rubber round is also available as a less-lethal option. The Type 10 round weighs 33.96～39.66g, containing 28 rubber pellets with a diameter of 7.2mm. The Type 10 paintball gun is also available for law enforcement usage.[1]
