The Daewoo DP51 is a semi-automatic, 9 mm pistol produced and manufactured by the South Korean Company Daewoo Precision Industries.
It is a lightweight, compact pistol with a "fast action" trigger mechanism which is considered to be somewhat unconventional. The frame is composed of a matte finish, aluminum and the slide is made of blued steel.
The unique "fast action" trigger device allows a cocked hammer to be moved into its down position while still ensuring the mainspring stays compressed. A somewhat light pull on the trigger allows the hammer to flick back, after which the firemarm would operate in conventional single-action (SA) mode.
The Daewoo DP51 can also be fired in traditional single- and double-action (DA) modes.
The unique "fast action" mode permits the trigger travel of DA mode while keeping the trigger weight of SA mode. This has proven to create a more accurate first shot because of the lighter weight of the trigger. The pistol is also safer due to the exteneded trigger travel required to fire the pistol.
The factory and primary magazines are 13-rounders. Smith & Wesson 59-series magazines have been used and are compatible with the DP51.
The pistol also features uses 3 dot sights and ambidextrous safeties.
The Daewoo DP51 is also outfitted with a firing pin block. The unique firing pin is blocked from moving forward unless and until the trigger is in its rearmost position.