Here's a very quick demo of the TLSFX Themobaric M11 Multi-Burst done by the Airsoft Grenadier... "TLSFx 3rd Generation pyrotechnics. Here is a quick demonstration of their M11 Multi-Burst grenade. A very powerful and effective pyro. These devices are more expensive than regular pyro but for serious MilSim players they provide an added sense of reality. Treat with respect."