Bore Tech C4 Carbon Remover, 4 oz

Okay. This stuff rocks! I dropped some into my extremely neglected BCG plagued with carbon. Left it in for about 15 minutes, then went to town with Q-tips. Same thing with the gas port on the bolt assembly, though it took a little elbow grease. It’s easy to use. I’m satisfied and will buy more when I run out, but that’ll be a while. It doesn’t take much. Worked like a dream.

Outstanding. Cleaned stubborn carbon rings around the chambers right off, just let it soak for 15min and then go with bronze brush.

This stuff works, absolutely incredible. I have struggled for years to rid off carbon on my guns and this did it without a sweat. Will will be purchasing more when I run out. Also love that there is no odor

I use this on carbon buildup on revolver cylinder faces and the forcing cone areas. It does good job at removing 99% using a large cleaning patch, the last little bit comes off with a light rub with some fine synthetic steel wool, no scratches. I found that if I soak a large patch with the C4 and let that sit on the carbonized area for a minute or two, the carbon comes off easier. The next test will be on an AR-15 bolt carrier group.

Does it remove carbon effectively? It does. Better than other brands I've tried? Yes. I'm happy with the results, but I'm not really happy with the price. If you have tough carbon to remove it's worth a try, but don't expect miracles.

The quality is very good, just as the seller described, easy to use.

Works great. Boretech makes the best firearm maintenance supplies on the market

It works. I always thought that decades-old formulas still used today have to be better than one of these, specifically made for each fouling element (copper, carbon, lead). Well, firstly I started to use Bore Tech copper remover and I was really, really satisfied with the results. Even though I was satisfied with the carbon-removing ability of my old and proven stuff, I wanted to give C4 a try to see if it does anything better than my old carbon solutions. Once I thought my rifle was clean and free from carbon, I used C4 as instructed. I couldn't believe how much carbon I was getting out... I cleaned at least 4 times before the patches were finally coming out clean. I had another carbon removal product that I used after C4, and no matter how long I left it soaked or scrubbed, there was no carbon deposit left in my barrel. I will not use anything else for cleaning carbon out of my rifle barrels. The odor is almost non-existent too, which helps with my wife not complaining no matter where I clean them.,