The staple of any airsofter, paintballer and MilSim player's pyrotechnic arsenal. The TLSFx Thunderflashes, or flash bangs, do exactly what you expect, delivering a loud report and distracting flash of light, reliably and consistently. The simple and effective "twist and strike cap" friction ignition system activated the consistent 7 second fuse. When the 7 seconds is up, the Mk5Thunderflash detonates with a loud bang and a bright flash. The twist and strike cap also protects the tip from damage and accidental ignition.