Fubar Bundy Airsoft - Looking for a Multi-Shot, Multi Calibre reusable blank firing grenade then the Alpha-Tec Gen2 grenade is right up your street. It can use 209 or 9mm blanks and
OMFG Multi Shot Blank Firing Grenade by Ohshiboom - Airsoft Direct
SWAT VTG Timed BFG Grenade Pink - Airsoft Direct
Grenade blank firing 8mm / 9mm cybergun (633511-mi): Grenades for Softair | Titano Store
Crawley Surplus Store - Concept Tactical TRMR blank firing grenades.... We now stock them in all colours with the single shot that fires 209 shotgun primers, 8mm, 9mm and 12 gauge or