FOLLOWING INFORMATIONS FROM: http://www.wapahani.com/addengl2.htmlThis Croatian weapon (which was introduced in 1996) has been copied from the South African Armscor MGL grenade launcher, it is manufactured to the same standards as it's South African cousin. However despite previous standards Croatia managed to acquire a contract to produce the weapon under license from South Africa. This in turn allowed them to have advisors from factoriesgive them assistance in setting up their production facilities. As such-by 2000 these weapon were common in the Croatian military structure.
Picture and information courtesy of: PIERANGELO TENDAS