Mirage shield material

[DJL]

I used a piece of 3.5 " vinyl vertical blind, cut .5 "off each side and applied some self adhesive faux "Carbon Fibre" tape from the automotive section for a little bling. Then got some self adhesive hook & loop(Velcro) put 2 dots on the barrel and used contact cement on the back side of vinyl for a little extra stick factor on the 2 pieces for that, cheap and works.
For cooling a hot barrel and this isn't practical in all situations, the heat energy dissipation from evaporation of moisture from wiping the hot barrel several passes with a dampened cloth makes cooling quicker than a fan blowing hot ambient air through it.
At least according to science.

 

[Shooter13]

Looks like that one requires electricity?? Mine is 12 volt. I can run it from a wall wart or a 12v battery source. It's cheap but I've had the same one for several years now. Got it at Walmart or target, can't remember which. I think the brand is
O2COOL...or something like that. About 15 bucks at the time.

Yes, I purchased a battery powered and it went bad, they replaced it and I'll take it with me to Wilmore.

 

[ridgeway]

Link for good fan?

I use this fan...works great.

https://www.lowes.com/pd/Kobalt-24-volt-Jobsite-Fan/1000716762?cm_mmc=shp-_-c-_-prd-_-tol-_-ggl-_-LIA_TOL_129_Power-Tools-_-1000716762-_-local-_-0-_-0&ds_rl=1286981&gclid=EAIaIQobChMI5NKA7bvH-AIVFPnICh0WhQ-_EAQYAiABEgJRTfD_BwE&gclsrc=aw.ds