This is a you tube video of the barrel blizzard. It works as well as any of the others, but it has 360 degree adjustable fans that you can rotate to cool your face while shooting and cool the barrel while not shooting. Plus it uses a great rechargeable usb battery that you can recharge in the truck if needed. Hate to sweat profusely while on the line.
Keeping the Grendel cool at the range
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I bought one of these, it seems to work well. I usually put it in and turn on while I go to target. It's made to lock up in an AR15, but it will work on the AR10's too. it won't lock up but just stick in the magwell and it works. I bought it on sale at another site at a lot better price than this one.
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