Product DescriptionCaldwell Accumax .223 Remington Barrel Cooler - 390247.
Cools your barrel in half the time. High pressure fan with dual motor bearings for long life. Integral wind tunnel directs air through the chamber. Powered by 12v Li-Ion rechargeable battery. 3-4 hour run time per charge. Fits any Mil-Spec .223 Remington or 5.56 caliber.