This US M3 / M3A1 Grease Gun Zip Bag Cover is a high-quality reproduction of the original WWII transport cover for the iconic American .45 submachine gun.
Made from sturdy OD-colored canvas and fitted with a full-length metal zipper, the cover allows easy insertion and removal of the weapon. The front features the correct stencil marking:
“COVER CAL. .45 SUB M.G. M3”
The interior is neatly finished with reinforced panels, making it not only historically accurate but also highly practical.
Perfect for:
Beyond its historical authenticity, this bag is simply a practical and tidy transport solution for your M3 or M3A1 Grease Gun (deactivated, replica or re-enactment version).
The shape closely follows the weapon’s outline, keeping it compact during transport.
Subtle Advisory (Historical & Practical)
For a correct WWII impression, this bag can be combined with original or reproduction US web gear in OD shades, depending on the unit or theater you portray.
Historical Context
The M3 Submachine Gun, nicknamed the “Grease Gun,” was introduced in 1942 as a cost-effective replacement for the Thompson. It saw widespread use by US forces in both the European and Pacific theaters.
Transport covers like this were used to protect the weapon from dirt and dust and to allow discreet movement. They were particularly useful for vehicle crews, tank personnel and support units where compact storage was essential.
Both the M3 and later M3A1 remained in service well beyond World War II in several NATO countries.
