Airsoft Taiwan shows us the new WE Hi-Capa Force Series which are named after some extinct creatures and test its magazine compatibility... "WE new Hi-Capa debut and AST tests the mag's compatility with other brands. Marui and Prowin will fit the WE Hi-Capa, but you got to check the version, because the Hi-Capa 4.3 mag is a little shorter than the Hi-Capa 5.1."