 They claimed that the Army "replicated" the design of the HK G36 assault rifle.After an exhibition of detailed models of the FX-05, the HK representatives were convinced that, despite the similarities between the two rifles, there was not a patent infringement, therefore bringing an end to the disagreement.In the end, the German firm stated that they would not sue on the basis that even though the rifle looks similar it is internally different with a completely different mechanism.