[doorgunner69]

Use plated ammo and a bore snake from time to time and it shouldn’t need much else.

And how does that clean the gas system and parts exposed to gases?

[Beagle8U]

Most of my firearms are bolt-action. Everything else gets WD-40 and air hose.

[Myrddin]

I wipe down the AR bolt with the cotton swatch/CLP. For more stubborn carbon build up, a BONE scraper is in the box of tools. I don't think any of my rifles has more than 150 rounds down the barrel, so it simply hasn't been a problem. The strip down for the Henry lever action is a lot of work. I've done it once. The revolvers get the bore snake down each cylinder hole and extra scrubbing on the cylinder face, extractor, and backstrap near the forcing code.

My wife field stripped her Walther PPK 380. The spring has no guide rod and it's really long. I reassemble using a 17 caliber cleaning rod through the front of the frame as a temporary guide rod. Compress the spring over the rod protruding inside and line it back up in the frame. I much prefer captive springs e.g. S&W, Sig, Glock.