I found a box of m18 smoke grenades and need to know if they are illegal to own as a civilian. I have done the cursory Google search and can find nothing but hearsay and assumptions, anyone here know for sure and have factual and tangible evidence. I am not looking for a shithouse lawyers opinion or what your cousin bubba told you, i need actual answers. I put in a call to the local ATF and had to provide them with everything short of a urine sample only to be told they would call me back, so if yall dont hear from me in a few days look me up at Club FED. Answers are appreciated.