In fact, the Soviet Union did have the MP40 squad.
The Soviet Union could be regarded as part of the Allied forces, couldn’t it?
Hope to be strengthened
In my opinion, if he could get it listed on br3, he could make a lot of money. At worst, he could just remove it from the shelves first, then lower its ranking on br. The people who bought it would be extremely happy. Then, when it’s re-listed later, people would rush to buy it at the original price. Or even now. Lowering the ranking can attract a large number of people to purchase.