Keeping the Grendel cool at the range

[Belt Fed]

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.

https://www.opticsplanet.com/caldwell-ca...e9e5234b96