Sorta like the fake mars rover videos they tried to shade us with. I say cut their food and let them start eating themselves.
Communists have no reputation as truth-tellers, so this weapon could well be a hoax.
Space gun, range of a kilometer, possibly magnetic. Really dangerous if you target is iron or steel!
How about kinetic or or plasma weapons? In the space environment Lasers might be more effective. Again it would come down to how much energy is required for a specific desired effect mass/weight is the limiting factor.