It's said that rifles have two enemies: rust and politicians. Well, add to that heat, because as rifle barrels heat up, they start wearing away easier, leading to more barrel swaps and more money dumped into your go-to precision gun. With the MagnetoSpeed Riflekühl Barrel Cooler, that's now a thing of the past! Whether you're heading down to change targets, reloading mags or making adjustments, you'll have some down time to let your rifle barrel cool off. Speed up the process by adding in the Riflekühl barrel-cooling mechanism. This unique product slips into your rifle's chamber and pushes air down the barrel to speed up the cooling process. This efficient system brings rifle barrels down to ambient temperature in as little as 7 minutes. While the MagnetoSpeed Riflekühl is working, it also filters dust as it blows air, preventing debris from being blown into your rifle barrel. The unit is powered by a single CR123A lithium battery and is small enough to fit into a pocket. As an added bonus, the bright-red body also doubles as a chamber flag, showing range officers that the gun is clear.