dude litterally exposed that his product is bad a good spring grenade should explode only on impact and all he did is flick it and it opened up that fall test also sucks because no body would be dropping it like that it would explode before it would even hit the ground
The grenade opens the doors and shoots the gel if impact While real grenades is you pull the pin and release the handle then it explodes except if the handle is still intact and not released