The first pleasant surprise that the Viking tripwire provided was its feather-light weight. At less than three ounces and with a compact size, this device wouldn’t take up much room in a bug out bag or hunting pack. The body of the device is CNC cut from a fine grade of aircraft aluminum, making it light – yet string and corrosion resistant. Open opening the folded device, I found that the movement was smooth and it could be secured in the “stake” position or the “closed” position with a spring loaded pin. A second spring (a much stronger one) drove the firing pin, which could be activated if the trigger were pulled either right or left - a nice feature that allows versatility in the tripwire’s usage. This device is also designed to be a slack tripwire, with no tight lines or cords to catch the eye. And just to keep you from getting into mischief with this device, it will not fire projectile rounds (they won’t fit into the tripwire).