Umarex Battle Ground Ratter Signal Effect - 20 pcs.

The Umarex Battle Ground Ratter signal effect - 20 pcs. are extra loud whistle cartridges with high trajectory. 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 weapon! They may only be fired from approved blank firing or signal weapons 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.