Tired of waiting and waiting for your rifle to cool down? MagnetoSpeed’s new barrel cooler, Riflekühl, is designed to get barrel temperatures down to intended operating levels quickly. The turbocharger-inspired impeller is engineered to produce great airflow in a small package. Powered by a single CR123A Lithium battery (included), ambient air is forced through the extendable nozzle down the bore of the rifle. Designed to seal and push airflow down the barrel where it’s needed to efficiently cool barrels, typically under 7 minutes.