The NS2000 is a 12-gauge pump-action shotgun weighing just under 4 kg (8.8 lb), designed primarily for security and civil disturbance situations.

The firearm includes a 570 mm (22 in) barrel despite the overall weapon length of just 690 mm (27 in). The short length makes the weapon easier to handle in close-quarters situations; however it can still remain accurate at relatively long ranges. The long barrel length is achieved by using a bullpup configuration, with a rear-fed tubular magazine.

Another aspect of the NS2000 is its dual six-round (6+6) magazine. The selector switch can be set to left, right, or alternating. In riot conditions, for example, less-lethal flexible baton rounds can be used with standard rounds in reserve.

A possible production variant of the NS2000 has a 460 mm (18 in) barrel in a weapon with an overall length of 560 mm (22 in). The shorter barrel length reduces capacity to a dual five-round (5+5) magazine. This makes the weapon easier to import or licence in some countries.

Its pump-action mechanism operates in a forward-and-back motion due to its moving-barrel mechanism, instead of the traditional moving-action of back-and-forward motion. This method of operation is quite rare. Safety is increased by this method, since the pumping hand cannot accidentally slide in front of the shooting barrel.^[2]

The NS2000 has been available for civilian purchase since 2003, with the majority of sales in Europe.

Patent drawings of the NeoStead 2000.

•  
  Magazine in loading position
•  
  Details of Magazine
•  
  Feeding is possible only from one tube, the other is blocked
•  
  Ejecting the empty shell
•  
  Feeding a new shell

• List of bullpup firearms
• List of shotguns

• Official Website
• shotgun patent
• magazine patent
• Neostead 2000 Dual-Tube Pump Shotgun Forgotten Weapons