- According to U.S. Department of Transportation (DOT) regulations, our Handheld Distraction Devices (such as smoke grenades, flashbangs, and MK9 bursting charges) cannot be shipped together with Stringbound Devices, other hazardous materials, ammunition, or non-hazardous items. For example, if you are buying an M15 Smoke Grenade, an M13 Flashbang, a Stringbound Device, and a box of ammo, you’ll need to place three separate orders: one for the M15 and M13 together, another for the Stringbound Device, and a third for the ammo. Each product has different Hazmat requirements, so they must be shipped separately. To simplify this process, our system will automatically prevent checkout if the order is not placed correctly.