18 Airsoft announce that the Hakkotsu Thunder Devil Sound Grenade from APS is now available in 3-shell or 12-shell packs with main core and you can order the S-type Shell Pack of 12 pieces if you need more. The shells are disposable and the sound grenade is CO2 powered. This can eb attached to a tactical vest or jacket and is designed like the contemporary grenades being used in the military.

• TB-07: Thunder Devil Package For 3 Shells W Main Core
• TB-12F: Thunder Devil Package For 12 Shells W Main Core
• TB-S-06: Thunder Devil S-Type Shell Pack Of 12 Pcs