Battle Steel Carbon Scraper

Good value for carbon scraper. It does the job

I didn’t want to cough up the “bones” for the other tool that this was designed after, and I was skeptical this one would work from other reviews. As soon as I received it I busted out my ar bolt and used this tool on it to make sure I didn’t need to return it. The fit was a little tight at first but after a couple spins it spun very nice and cleaned my piston off great! I also used the scraper for the inside of the bolt and it took quite a bit of buildup out that I wasn’t able to reach before.I just ordered another one to keep handy. My bolt is mil spec so maybe others that are having bad luck with the tool either had bad quality control from the company or don’t have a mil-spec bolt. Hard to say but for me it worked great!