https://www.gunsamerica.com/blog/can-cannons-triumphant-return/?utm_source=email&utm_medium=20160422_FridayDigest_26g&utm_campaign=/blog/can-cannons-triumphant-return/
Anybody heard about this? Sounds awesome, especially the grappling hook that they are working on. I'm confused about what the ATF thought was wrong that they had to change.
The blank barrel stub inside the larger can barrel had a port on the crown as well as all the holes down the sides. Either that, or the port at the end of the "muzzle" was just closed off with a bolt or wasn't welded shut or something, which meant a live .223/5.56 could have fired from it (albeit badly) which technically made it an SBR.
So they welded the end shut or something and the ATF gave it the go-ahead.
They could have just kept selling them as-is, since uppers/barrels of any length are unrestricted, but people who owned them and put them on non NFA registered SBR AR lowers would have been in jeopardy of making unregistered SBR's.
The usual picayune stuff. Although the upside is that at least it was one of the less capricious decisions the ATF ever made, because there was at least some technical rationale behind it. And it was a pretty easy fix for X-products.