SimplyCool Barrel Cooler

SimplyCool Rifle Barrel Cooler – USB Cooling Fan

The SimplyCool rifle barrel cooler is a USB-powered cooling fan designed to keep your groups tight and your range time efficient. Every shot adds heat to the barrel, and as temperature rises, point of impact shifts and accuracy suffers. Instead of waiting 10–15 minutes between groups, SimplyCool actively pulls heat from the barrel and reduces cooldown time to as little as 1–2 minutes.

Built for precision shooters, reloaders, and competitors, SimplyCool helps maintain consistent barrel temperature during load development, practice, and match shooting. By keeping heat under control, you get more repeatable results and spend more time shooting instead of waiting on your rifle to cool.

SimplyCool uses a high-static-pressure fan powered by any standard 5-volt USB source, including battery packs and wall adapters. Three interchangeable barrel ducts are included to accommodate a wide range of calibers, optimize airflow for each combination and provide rapid heat removal. The fan operates quietly, allowing it to be used on the firing line without disruption.

Manufactured using durable additive processes, SimplyCool is lightweight, compact, and easy to transport in your range bag. The high-visibility orange model also functions as a chamber safety indicator when installed, adding an extra layer of range safety.

The SimplyCool rifle barrel cooler gives precision shooters an active, repeatable way to manage heat and maintain accuracy shot after shot.

Product Features:

• Three sizes of removable ducts: 5.56, Standard/Magnum, and Lapua bolt faces

• High static-pressure fan pushes airflow through long barrels and suppressors

• Whisper-quiet operation suitable for use on the firing line

• Manufactured using durable additive manufacturing processes

• High-visibility orange option may be used as a chamber safety flag

• Compact fan body measures 3″ × 3″ × 1″

For SimplyCool individual pieces and attachments click here!

5.56 Duct Compatibility*

• Small bolt face diameter 0.384” +/-
• 5.56 NATO, .233 Rem.
• .222 Remington, .204 Ruger
• 22 Nosler

Standard/Mag Duct Compatibility*

• Standard bolt face diameter 0.470” +/-
• 308 Win., 243 Win., 22-250 Win.
• 6mm and 6.5mm Creedmoor
• 270, 30-06, .284 Win.

• Magnum bolt face diameter 0.540” +/-
• 6.5 PRC, 300 PRC
• 28 Nosler
• 300 Win. Mag., 7mm Rem. Mag., WSM and SAUM families
• 300 RUM, 338 RUM

Lapua Duct Compatibility*

• Lapua bolt face diameter 0.585” +/-
• 338 Lapua Mag.
• 300 and 338 Norma Mag.
• 338/378 Weatherby
• 416 Rigby

*List is provided as an example

Best practices:

Run cooler for 1 to 2 minutes between 3 round groups. Run 3 minutes or more for 5 shot groups.