Horrifying!!!!
These degenerates are seriously pushing boundaries. The writer believes they are for fentanyl, etc, but seeing as your average antifa rally has as high a rate of AIDS as a middling-sized african "nation" due to them being a bunch of junkies, faggots and troons, I'd say the rig is for AIDS/ Hep C blood. I'd also speculate that rhey are meant to be defensive weapons, used as a phalanx in conjunction with their shield walls to keep the cops at bay. Hopefully if they ever try this, every one of them gets sniped with 7.62 from the rooftops. I know the author. He is not given to EVER make things up, and has been documenting these pukes for nearly a decade. He says this is from Portland.
Check the page out. While his writing is unpolished, his databank is massive and useful.
If anyone wants a copy of the database, he gives it out for free (you send the drive) it's around 4TB at this point. He is scrupulously honest with money/property and will give the DB to to anyone who wants it. Most major police forces in Canada have already been provided one. Let me know, or DM him on the page. Guaranteed it's bigger than Andy Ngo's. (but largely Canadian)