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. Insert the tube of BarrelCool through the ejection port of the firearm and into the chamber portion of the barrel. If the tube is too long, cut tube as needed.
The Caution-Yellow paintjob makes BarrelCool fit the standards for an NRA-approved Chamber Flag. Required at many ranges and competitions, a chamber flag indicates the firearm is free of any ammunition, and unable to fire. BarrelCool is a chamber flag that doubles as an enhancement for your rifle!
(3) CR123A batteries included.
-Significently cut barrel cooling in half
-Batteries: 3 CR123A (included)
-NRA approved chamber flag
-4" elastic strap to secure to firearms