Bowhead Total Enterprise Solutions, LLC 1 article published in JoVE Engineering Processing of Bulk Nanocrystalline Metals at the US Army Research Laboratory Vincent H. Hammond1, Billy C. Hornbuckle1, Anit K. Giri1, Anthony J. Roberts1, Thomas L. Luckenbaugh2, Joseph M. Marsico3, Scott M. Grendahl1, Kristopher A. Darling1 1Weapons and Materials Research Directorate, US Army Research Laboratory, 2Bowhead Total Enterprise Solutions, LLC, 3Oak Ridge Institute for Science and Education This paper provides a brief overview of the ongoing efforts at the Army Research Laboratory on the processing of bulk nanocrystalline metals with an emphasis on the methodologies used for the production of the novel metal powders.