Was given a bottle by Gun Smith/ Builder to try. He knows I will be honest and I use some of my firearms hard. Very impressed (bought three more bottles). Easy cleanup (carbon removal). Very little wear if any in early stages of trial. I have NEVER wiped my bolt carrier clean with a towel much less firing pin or bolt. Further test to follow. Will have to see how it holds up to the salt air, heat and humidity on the Texas coast.

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