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When I was in Korea, a Squad Leader in another Platoon had his guys use Easy Off on their M-16's, took the blueing off. Yep, the CO made the pay for the cost of reblueing.
I find just the opposite. I've been using Cu4FYI. I've run several 'experiments' with CLR. My net is that it cleans carbon about as well as Bore Tech C4 or Eliminator. Definitely not better, might be a little less effective.
When used on a barrel that has been shot, the initial patches do come out very black - visually it looks like it is getting out more than C4 or Eliminator. BUT.. it takes as many, maybe more, patches before the carbon is all gone.
It took the finish right off, terminology is irrelevantM16's aren't blued...... jim
The navy seals had themM16s in Korea? I don't think so.
So they use clr in an ultrasonic? Have you tried simple green in an ultrasonic? It cleans hard carbon off very quickly. I can put 6 very carboned up 2 stroke pistons in there and one 60min cycle they look newI find just the opposite. I've been using Cu4
For years. I also run Tbac Suppressors on quite a few rifles. Thunderbeast will clean your can for free once a year. At a match years ago I was talking to Zach from Thunderbeast about sending one in. He said they use CLR. Got myself an ultrasonic cleaner and do mine every 500-1000 rounds now. Started experimenting with it on old barrels and was amazed at the results. I'm not saying it magically makes the carbon disappear. But I've proven it makes 1/2 the time and effort to get it off. Confirmed with a Hawkeye. Try a wet CLR wet patch on the crown after pulling a Suppressor or Brake off and see for yourself. As far as hurting a Stainless barrel. I cut sections of a dead barrel and submerged for a week. I saw no pitting. To each their own.
CLR does NOT remove carbon from my flash arrestor. 3 x 24 hours immersion. Fresh cleaner each morning. Just a little came off. Not alot.
