BarrelCool | A unique, patent pending, product that combines the safety of a chamber flag and a fan for maximum barrel cooling on your rifle.
Controlling barrel temperature is a known method to improve accuracy between strings. Enhance barrel cooling by using Barrelcool- a chamber flag with a built-in fan.
When barrels get hot, the metal expands. At long range, barrel heat significantly changes bullet travel. Take control of your barrel’s temperature with Barrelcool.
Waiting to cool for cold-bore mapping? Barrelcool can cut your time significantly.
You need a chamber flag– why not use Barrelcool and improve accuracy while waiting?
(3) CR123A batteries included.