Bore Tech Cu+2 Copper, 16 oz

This review is going to be the same for all 3 Boretech products I ordered as part of their system. C4 Carbon Remover, Eliminator Bore Cleaner, and CU+2 Copper Remover:I don't enjoy cleaning guns, and tend to neglect them because of the time it takes to clean semi-auto DI guns, guns fired suppressed (nasty), and proper barrel cleaning of precision bolt guns. I will sometimes spend 3 hours on a barrel removing carbon fouling and copper if I do the entire regimen. I hate it.I've been using a bunch of different flavors of solvents, copper removers, bore scrubbers, etc. Everyone kept mentioning Bore Tech this, Bore Tech that, whatever, I said. I was given some Amazon gift cards at work, and decided to finally try them out.I just took a 750 round defensive carbine class, which I shot entirely suppressed out of an LWRC SBR. As many know, suppressed shooting deposits a lot of carbon everywhere regardless of the fact that it's a piston-driven gun. I was dreading the cleaning process but decided to wait on the Bore Tech products to arrive.I started by putting some C4 Carbon Remover on a patch and began working it into the BCG, inside the upper receiver, and barrel extension. I wasn't planning on cleaning the barrel, so I just took a chamber brush and soaked it in C4, gave it a few turns in the chamber, and grabbed a rag to wipe off the upper receiver. I wasn't expecting much, since I normally have to scrub with brushes and elbow grease. The rag came off black and removed every last bit of carbon just by wiping it off. I couldn't believe how effective it was. The carbon was just melting off. I cleaned the entire gun with just patches, q-tips, and a rag in less than 15 minutes. At this point, I decided to clean the muzzle, which consists of a Surefire CTH Warcomp and a carbon-locked suppressor. Since I'm not at the range at this point, I can't shoot off the suppressor, and it's locked in tight. I dribble a bit of C4 on the mount area, and within a couple of minutes, the can just slides right off. I finish clean the carbon off the muzzle device and decide to go full-retard and do the barrel as well.I started the barrel with one patch soaked in C4 to saturate the bore, then followed by 10 strokes with a nylon brush. Patch out the absolute blackness that comes out until patches are fairly clean. About 5 patches in my case.I repeat the process with a patch soaked in Eliminator Bore Cleaner. First patch comes out blue, as do the next 10 patches. (I haven't even started using the CU+2 yet). I repeat the process with Eliminator one more time, and patches are coming out clean.I decided to de-copper as well, since I'm already here. I repeat again the same soak, brush, patch process with CU+2 Copper Remover and patches are showing just a slight hint of blue. (I use nickel-coated jags, so no false positives from the jags) I end with another wet patch of Eliminator just to clean out the copper remover (no ammonia, so I don't think this step is necessary) and dry patch with 4 more patches. Patches are completely white. (I also bore-mopped the chamber to get rid of the previous cleaning process) Put the gun together and there is no hint of this gun ever being fired. It's that clean. I think all in it only took one hour.Well-worth getting the whole system I think, although the CU+2 is probably overkill, as Eliminator can remove quite a bit of copper as well. I was most impressed with C4, cause it melts carbon fouling like it's butter. It's great to clean muzzle breaks and DI receivers.

I shoot Barnes solid copper bullets & this product makes quick work of any copper fouling. Easy to use, doesn't stink or scare you it is going to eat your barrel. I like Bore Tech products. The carbon cleaner works well also on the carbon ring. I use a bore scope to inspect & both products work great.

Excelent product

I typically use foaming bore cleaner and my cleaner stopped working due to loss of gas/propellant (had the can for something like 7 years). However cool it was to see the foam turn blue from copper, it never worked as well as I'd like in removing either carbon or copper. I tried the C4 Boretech carbon remover and was sold. I then tried their Copper Remover and am now a firm believer. I use Otis cleaning products for my rifles, including my 26" 300 Win Mag barrel on the Browning, but the brass patch loop and brushes tends to leave false positives. Aside from that, I found the Cu+2 works fairly fast. After 3-5 patches of this stuff, the bore is almost completely clean. I did a test on a small section with a Q-Tip soaked in Cu+2 and scrubbed the bore area near the muzzle where i could visibily see copper fouling. After a few seconds the copper was gone!I'm now a firm believe in this stuff. It's good to go! best of all it doesn't smell bad, doesn't contain ammonia, and seems very safe to use.

I recently bought a borescope and realized all these years I've been cleaning my firearms... I haven't actually been cleaning my firearms! The carbon fouling isn't tough to clean, but the copper fouling I found in my barrels shocked me! I went through an entire bottle of Hoppe's copper solvent over the past two weeks (stinky stuff!), and it didn't get the job done. This CU+2 stuff just arrived yesterday, so I ran some wet patches down the barrels as suggested, but I decided to let it sit overnight. I just ran a dry patch down each barrels this morning, and the amount of blue (dissolved copper) was impressive! I think maybe two more rounds of this, and I should be good. This is third product I have tried now, and it is doing what the other two failed to do.

I have been using Boretech Copper cleaner for years along with many of their other products- Carbon cleaner, Eliminator, Rimfire cleaner, rods, brushes, jags and more. All work well and easy to usewithout the worry of harming your firearms.

The media could not be loaded. Easy to use, a little pricey but not much more than other products,and it cleans copper out very well without hard work. Brush a few times let it soak and dry patch til clean. Two or three times for heavy buildup but it's hassle free and won't hurt the barrel without using any neutralizers...none needed!

Used Butch’s Bore Scrub on my barrels for years. Could not get the residual copper out of the lands. The Bore Tech really did the trick. Removed copper easily with no toxic smell.