The Daewoo Precision Industries K5 is a 9 mm semi-automatic pistol produced by S&T Daewoo of South Korea.

The K5 was produced in 1989. It is recoil operated and uses a conventional Browning-type locking system. It is mostly carried by Commissioned Officers in the Republic of Korea Armed Forces.


The K5 is a compact, lightweight pistol with an unconventional trigger mechanism called "fast action". The frame is composed of an aluminum alloy with a matte finish, while the slide is of blued steel.

The "fast action" trigger mechanism allows the hammer to be decocked while still keeping the mainspring compressed. A light pull on the trigger causes the hammer to flick back, after which the pistol would behave in conventional single-action (SA) mode.

The pistol can also be fired in conventional single- and double-action (DA) modes. The "fast action" mode allows the trigger travel of DA mode and the trigger weight of SA mode. This allows a more accurate first shot due to the lighter weight of the trigger. It is also safer due to the longer trigger travel required to fire the pistol. The factory magazines hold 13 rounds. Smith & Wesson 59-series magazines are compatible with the DP51 but will protrude slightly.

The pistol also has an ambidextrous safety and three-dot sights. It is also equipped with a firing pin block which (as its name implies) blocks the firing pin from moving forward unless the trigger is pulled.


  • XK5: Experimental prototype.
  • K5: Standard mass-produced variant.
    • DH380: Civilian version of K5 chambered with the .380 ACP.
    • DH40: Civilian version of K5 chambered with the .40 S&W.
    • DH45: Civilian version of K5 chambered with the .45 ACP.
    • DP51: Civilian version of K5.
      • DP51C: Compact version of DP-51.

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