Developed as a replacement for the MG15 machine gun, the MG81 was intended for use as aircraft armament in flexible mounts, both as individual weapons an in the "MG81Z" twin mount configuration. Some are known to have been refitted for use as a light machine gun in ground combat, with this example fitted with a bracket on the heat shield for attaching a bipod (not included). Manufactured without fixed sights, with the heat shield numbered "25576" and the receiver and top cover numbered "86319", the latter also marked "MG81/gal" (associated with Wagner). Fitted with a serrated pistol grip and a modern custom made steel buttstock.

Fine as modified overall, with 60% of the black finish on the heat shield and custom stock, 80% of the phosphate finish on the receiver and top cover, with areas of brown and gray patina, mild spotting and scattered handling marks. A welded repair is visible at the left rear of the receiver. The grip is very good, with some cracking and chipping. Mechanically very good. NOTE: This weapon is a National Firearms Act (NFA), fully transferable Class 3, which is registered with the Bureau of Alcohol, Tobacco, Firearms and Explosives, (BATFE) that is classified as a "Curios or Relic" as defined in 27 CFR, 478.11. These weapons are still subject to the provisions of 18 U.S.C. Chapter 44 and 27 CFR part 479.