Bolt Action Airsoft tests some grenades that are used in airsoft to find which is the best in their "The Airsoft Lab" series... "Hello everyone and welcome to The Airsoft Lab. This is the video series in which we discuss everything about airsoft. From tips to stories we talk about it all. In this month’s video, we are talking about what we believe to be the best overall airsoft grenade, breaking down the different types of grenades and shells, and doing some fun challenges.