Mach Sakai gets his hands on a rare Hudson M3 Grease Gun, an airsoft gas gun of the classic submachine gun, featuring a gas blowback system that aims to mimic the operation of the original firearm. This particular unit was found in the used section of a hobby shop in January 2026 and stands out for its unique construction, which uses a significant amount of resin to keep the body relatively light. Despite its plastic exterior, the magazine is a hefty chunk of metal weighing over a kilogram, making it feel more like a dumbbell than a piece of ammunition.

During the testing phase, he notes that the gun operates with an open bolt system, providing a satisfying "clank" when fired. The trigger pull is surprisingly light for such a chunky-looking machine, though the overall ergonomics are a bit basic, with a grip that might leave your pinky finger searching for a home. One of the more entertaining quirks is the springy "boing" sound the gun makes during recoil, which adds a bit of musical flair to the shooting experience. [06:53]

Performance-wise, the Grease Gun proves to be a bit of a diva regarding temperature, requiring a warm magazine to function smoothly. When properly heated, it manages a decent firing rate and accuracy, even hitting targets in a competitive layout. While it might struggle to empty a full magazine in one go without a pep talk and some warmth, the mechanical charm and historical aesthetic make it a fun piece for collectors who don't mind a little extra maintenance.