For those who aren't familiar, that is not a stock. That is a shockwave blade "stabilizer" it is considered a wrist brace by the ATF. No tax stamp required to own this. It is still a pistol, not sbr.
Addressing this because I've gotten a few pm's asking about any feed issues. This is a dedicated 9mm lower not a magazine block inserted into a .223 lower. This thing will dump a mag in seconds without issue. Bump