The World’S First Pistol-To-Rifle Bullpup Conversion Kit – Meta Tactical Apex Gfc First Mag

TOP COMMENTS FROM VIDEO BELOW

This thing is quite ridiculous to modify your pistol, however the fact that it technically changes it into a rifle and not an SBR and you won’t need to register it as an NFA item is pretty nice.

Seems like great accuracy even though you can see the end of the barrel jumping around after each shot.