BJC Series Mechanism Bodies. These bodies for mechanisms are compatible with different series of BJC mechanisms such as the Mega BJC Series family. The Mega BJC range of mechanisms, has a wide catalog of finishes, all of great quality. In Onulec we have different finishes in stock, such as finishes in aluminum, chrome, metallic, polar white, etc. And on request we can supply all the finishing of the Mega BJC Series.