Mechanism
This rifle is based on a nine-and-three-quarter inch long recoil mechanism. This mechanism, usually found in shotguns, helps manage the heavy recoil forces of the 15.2 mm Steyr APFSDS round due to its damping effect that allows for force distribution over a longer period of time. Another unusual feature of this weapon is the movement of the barrel. After firing, the barrel recoils into a shock-absorbing hydro-pneumatic sleeve much like those found on a LG 1 Mark II 105 mm Howitzer. The IWS 2000 also uses a multi-baffle muzzle brake to distribute muzzle energy and further reduce recoil, similar to the ones used on D-30 2A18M 122 mm Towed Howitzers. The entire rifle body is made up of a combination of high-tension plastics and superlight polymers to increase manageability and cut down on weight. The smoothbore barrel is easily detached and packed away for increased mobility. The five-round box magazine is inserted on the right of the rifle at a 45-degree downward angle.
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