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1/25/2018 7:38:29 AM
Posted: 1/17/2006 7:15:51 AM EST
Hello All,

I have a Bushmaster AR with a muzzle break on the end. The holes in the muzzle break have a blueish color to them. What is it?

I have only shot Winchester white box ammo through this gun for the last 3 years. I would say it probably only has about 2000 rounds through it.

Link Posted: 1/17/2006 7:18:20 AM EST
That blue goo is the result of bore cleaner running out of the end of your barrel after cleaning. Use q-tips and CLP to get into the holes and clean it out.
Link Posted: 1/17/2006 7:18:44 AM EST
I believe its some kind of reactions between the metals, no need to worry
Link Posted: 1/17/2006 7:32:02 AM EST
Thanks guys!

Link Posted: 1/17/2006 7:41:49 AM EST
It is the bullet metal blasted onto the muzzle device, which has started to corrode and turn greenish/blue. You can get rid of it by cleaning it as agressively as you clean the bore, or just don't worry about it. Its just cosmetic anyway. I leave mine until it corrodes a little, then I brush out the excess.

I hope this helps.
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