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AR15 Barrel question..

Jaeger_308

Sergeant
Full Member
Minuteman
Mar 27, 2008
216
0
52
Indiana
So I take the front sight post off of my AR to put a YHM Tube on, I put the gas block on and now I have the shint ring where the sight post was.. I'm concerned about rust, any suggestions on how I can cover that with something ?
 
Re: AR15 Barrel question..

Birch Casey makes a product called super blue or perma blue, these are sold at most sporting goods stores and are really good for touch ups like where the front site was. It has a chemical reaction to turn it black again.