Caliber: 5.56x45mm NATO (.223 Rem)
Action: Gas operated, rotating bolt
Overall length: 980 mm (730mm w. folded stock)
Barrel length: 465 mm
Weigth: 3.26 kg
Magazine capacity: 30 rds
Rate of fire: 750 rds/min

Daewoo K1 and K2 are primary infantry weapons of the South Korean Army. These rifles replaced in service old M16A1 rifles.
Technically, Daewoo K2 is a select-fire, gas driven, rotating bolt firearm. The bolt/bolt carrier assembly of the K2 is very similar to one of the M16, but with one main difference: in the place of the gas expansion chamber of the M16, K2 bolt carrier has a cut slot. In this slot is inserted the rear part of the gas rod, with gas piston attached to the forward part of the gas rod. Also, K2 does not have the recoil buffer, that could be found in almost any M16/AR15 type weapons. The receiver is of folding design (upper and lower receiver are connected via 2 steel pins, like the M16 or FN FNC receivers). Charging handle is installed on the right side of the bolt carrier. The polymer buttsock is folding (to the right side of the weapon). Gas system has 4 positions switch - one position is for rifle grenades firing (gas port is closed completely), other 3 positions - for operations in normal conditions, in adverse conditions and in extreme heat.
The K1 is a cut-down, shortened version of the K2 with telescopic stock and shorter barrel.
Civilan, semi-auto version of the K2 is manufactured in two calibers: 5.56x45mm (.223) and 77.62x39mm, and is named DR-200 or DR-300, respectively.