As with the DSR-1 before it, the DSR-50 operates through a manually-actuated bolt-action system requiring the user to manage the bolt lever over the side of the receiver to eject spent shell casings and introduce a fresh cartridge into the chamber. A recoil buffer is set within the shoulder stock and multi-baffled muzzle brake helps to retard some of the violent forces inherent when firing such a large and powerful cartridge. The cartridge is capable of defeating up to light armor and, therefore, useful in a tactical sense - crippling individual components on an enemy tank (sensors, vision blocks), neutralizing enemies behind concrete walls, disabling vehicles at range (the bullet is known to pierce engine blocks), etc...
The use of a bullpup configuration allows the rifle to use a full-length rifled barrel assembly, set within the shorter stock, and thusly a shorter overall length is achieved. This also provides a slight increase in repeat-fire accuracy as the dimensions are tighter and held closer to the shooter's body. This style of long gun has been seeing increasing popularity over the few decades, superseding the traditional rifle arrangement that seats the action and magazine/feed ahead of the trigger unit.
As far as is known, the DSR-50 series is in service with Malaysia.
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