DEPARTMENT OF THE TREASURY BUREAU OF ALCOHOL, TOBACCO AND FIREARMS WASHINGTON, DC 20226 REFER TO: T:T:F:EMO 7540 23 APR 1979 Dear : This refers to your recent letter in which you ask about the classification of the M134 "Minigun." The 7.62mm M134 "Minigun" is classified as a machinegun as that term is defined in Section 5845(b), Title 26, United States Code (U.S.C.), The National Firearms Act. The housing assembly is considered to be the receiver of the M134 "Minigun." The housing assembly is that portion of the weapon which houses the rotar assembly. We trust that the foregoing has been responsive to your inquiry. If we can be of further assistance, please contact us. Sincerely yours, [signed] Nick Voinovich Chief, Firearms Technology Branch