3D printed poison dart pistol, .40 caliber

inspired by President Obama’s proposed ban on sharing firearm drawings on the internet, this 3D printed poison dart pistol is invisible to metal detectors and can be manufactured by anyone in the comfort of home. legality: the term “firearm“ is defined in 18 . § 921(a)(3) and covers ONLY those weapons that “expel a projectile by the action of an explosive“. airguns are specifically exempt from all firearms regulations under federal law.