Section 19 ARMS AND AMMUNITION; PARTS AND ACCESSORIES THEREOF 93 ARMS AND AMMUNITION; PARTS AND ACCESSORIES THEREOF 93 03 MUZZLE-LOADING FIREARMS, VERY PISTOLS AND OTHER DEVICES DESIGNED 93 03 90 VERY PISTOLS AND OTHER DEVICES DESIGNED TO PROJECT ONLY SIGNAL FLARES; Commodity Code Description 93 03 90 10 VERY PISTOLS AND OTHER DEVICES DESIGNED TO PROJECT ONLY SIGNAL FLARES; 93 03 90 90 OTH.FIREARMS & SIM. DEVICES WHICH OPERATE BY FIRING OF AN EXPLOSIVE CHARGE