Post front and 4-position drum rear sights, standard bird cage flash hider, narrow checkered forearm, "0-1" trigger group, carrying handle, 20 round magazine and a polymer pistol grip and buttstock. The right side of the magazine well has the "HK Inc" import marks and the left has the model, serial number, caliber and "eagle/N, IB, antler" commercial proofmarks on the opposite. Magazine absent.