O'dwyer James Michael
O'Clair Sean
O'Neil Pat
O. F. Mossberg & Sons Inc.
O.F. Mossberg & Sons, Inc.
Oakley Kevin Noel
Oakley Timothy G.
Oakley Timothy Grant
Oakley William T.
Oberst E. Ernest
Obong Robert V.
Obong Roberto V.
Ockenfuss Ulrich
Oertwig Terrance D.
Oglesby, Jr. William D.
Ohio Ordnance Works, Inc.
Ohlhauser Bradley D.
Olde Savannah Arms Company
Oliver Harry M.
Oliver Keith P.