Zink Firework Whistle Cartridges 50 pcs. 15 mm

The Zink fireworks whistle cartridges 50 pcs. 15 mm produce a whistle sound after firing. Caliber: 15 mm The signal effects may be fired with a muzzle adapter (additional barrel) in caliber 15 mm. In calibers 9 mm PA blank and 9 mm R, the PTB test number on the muzzle adapter (additional barrel) must match the PTB test number on the blank firing or signal gun! They may only be fired from approved blank firing or signal guns with PTB mark using blank cartridges of calibers 6 mm Flobert, 8 mm blank, or .315 blank and a muzzle adapter in caliber 15 mm.