A refinement of the World War One era MP18 SMG, the MP28.II was part of the last generation of "heavy metal" SMGs, prior to the transition to the MP38/MP40 models for the Germans. Blade front and tangent rear sight, with a ventilated receiver that doubles as a heat shield for the barrel and a magazine well marked "M.P.28.II/SYSTEM/SCHMEISSER/PATENT". The underside of the receiver bears the serial number. A manual hook safety is integrated into the receiver, with a "D" and "E" marked pushbutton selector switch built into the trigger guard. Fitted with a smooth pistol grip stock with grasping grooves on the forearm and a ribbed steel buttplate. Includes a brown leather sling and some spare parts. The deactivation was performed by installing a metal plug in the breech and grinding down the tip of the firing pin; the bolt moves freely and has an unobstructed firing pin hole, and the trigger mechanism is fully functional.

Fine as deactivated, with 70% of the original blue finish, showing areas of brown patina, spotting and handling marks. A section of the heat shied on the left side is absent, with areas of metal torn or cut in a roughly triangular pattern; while no accounting of the history of the weapon was provided, this signs are suggestive of a bullet or fragment strike that was later cleaned up by cutting away the most jagged sections of the metal. A retention screw is absent from the barrel, and some parts (including the bolt) are mixed numbered replacements. The stock is good, with a number of scuffs and dents. The extractor occasionally shifts out of position and binds up against the ejector port, otherwise mechanically excellent. NOTE: This is a registered DEWAT weapon with the Bureau of Alcohol, Tobacco Firearms and Explosives (BATFE), as a National Firearms Act (NFA) weapon, that is fully transferable. It has been classified as a Curio 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, National Firearms Act.