Im chung-bin the the chief of staff of ROKA examines new South korean double barreled rifle K-11 in ground weapon conference.2008.11.11 Daejeun South korea This rifle uses 20mm airburst ammunition and 5.56mm NATO. 20mm launcher operates as bolt action and use 5 round mag. This weapon will be fielded in next year.
Like the XM29 OICW, it appears to weigh a ton.
Cross-posted from GunPundit.