MK7 thunderflash flash grenade 3.0 vITAL STATISTICS: ignition: friction striker fuse delay: 4-6 seconds effect: Very Loud mid frequency report payload: some fragmentation from cardbaord tube area of effect: n/a report: max 120db at 15M pack qty: 140 per box low down: a distintively different noise to a thinderflash-zero fragmentation-a close proximity distraction device-Fits wp40 pouches vITAL STATISTICS: ignition: Wire Pull Igniter fuse delay: 4-6 seconds effect: low frequency noise payload: no fragmentation area of effect: n/a report: max 120db at 10M pack qty: 100 per box low down: a distinctively different noise to a thunderflash-zero fragmentation-a loud distraction device-Fits wp40 pouches