I was out shooting yesterday, and I finished up with my AR by firing maybe fifteen rounds pretty quick - which got the barrel pretty hot. Not as hot as they can get - but pretty warm. I always take my weapons to the range in gun cases, and the AR lives in a hard case that's foam lined. I didn't want to stick it in the case that way and take a chance on it melting the foam, so instead I wrapped it up in a little throw rug that's in my trunk. With pistols I don't like putting carboned up steel in an otherwise clean gun rug. so I always wrap them in a rag first and then put them in the case. How do you do it?