The series of pics is fake according to K9kid. The person injured in the picture was not related to this series of pics. As well look at the one good picture of the barrel interior , just a inch from the muzzle. Something was there and not sure of it was this device as well.....
I’ll have to say....I HAVE seen the series before....but NOT with the photo of the injured guy. I’ll take a look at the end of the bbl.
The series of pics, excluding the dude on the stretcher, do belong together. Saw it posted by the shooter previously on some other forum.