K-11

The K11 was designed between 2000 and 2008 by the Agency for Defense Development in collaboration with S&T Motiv, EO System, Poongsan Corporation, and Hansung ILS. Publicly unveiled at the DSEI military expo, the system follows the design concept of the United States Objective Individual Combat Weapon (OICW). S&T Motiv serves as the primary manufacturer for the weapon system.

The system utilizes a bullpup configuration consisting of two integrated weapons sharing a single trigger. The lower assault rifle section is gas-operated with a rotating bolt, while the upper grenade launcher functions via a bolt-action mechanism. A four-position fire selector, positioned similarly to the M16/M4 series, allows the operator to toggle between safe, three-round burst, semi-automatic fire, and the grenade launcher. An integrated digital sighting unit includes an electronic scope, laser range-finder, and ballistics computer, which is capable of linking to a thermal imaging goggle system. The launcher section utilizes a detachable box magazine and fires grenades with programmable fuses for point detonation, delay, or airburst modes. These fuses are automatically set by the sighting unit based on range data. Later design iterations incorporated technology to orient the airburst explosion in a fixed direction and reduced recoil for the rifle section.

The Republic of Korea Armed Forces adopted the K11 in 2008, beginning field distribution to infantry squads in 2010. The weapon saw operational use with Korean forces during the War in Afghanistan. In 2010, the United Arab Emirates acquired 40 units for evaluation. Following its introduction, the program encountered technical failures, including barrel movement, striking mechanism faults, and condensation within the optics, leading to production halts for design modifications. A second-generation variant was revealed in 2017, featuring reduced weight and modified ammunition. Despite these updates, the South Korean government officially cancelled the project on 4 December 2019, citing persistent accuracy issues and mechanical defects.