Person very familiar with NFA items

[275RLTW]

Define explosive devices and who the seller was?
I have seen some things i questioned but the answer i received was satisfactory regarding legality in CO.

Same here but everything I saw actually legal. wondering what it was

M18 Smoke grenades about 1 1/2 years ago. The M201A1 igniter used in them are considered explosive devices that require a FEL to posess or transfer.