I went with Rifles Only Suppressor Covers. Got mine through
Triad Tactical as they had other items I wanted at the time I bought it.
I leave mine on all the time now. The cover's outer cover has sometimes slipped a bit because I haven't found the best way to secure it yet over long shooting strings.
The advantages become very, very apparent if you've ever shot something like a precision rifle stage. Shooting with a buddy off a VTAC with precision guns, with something like 2 rounds and 3 different shooting positions for time, I found that not having a cover meant that by the last shots, I was starting to see mirage. Run it a couple times and the can is hot enough you can only see mirage.
I bought a cover right after doing those shooting drills and so I'd have it before a precision match. They work great. It also means you can snug it back down without gloves if the temp changes start to loosen the can (assuming direct thread).