Safe to use CLR for cleaning a nickel boron bcg?

[Stugots]

Is it safe to use CLR for cleaning a nickel boron bcg? I have a number of BC's that are made of nickel boron and was wondering if the chemicals in CLR will harm any of the parts in it. IE - Firing pin, bolt, gas key etc.

 

[jelenko]

I would think not, but why not just use MPro 7? It's not that expensive

 

[Stugots]

I was just looking for something to make the process of cleaning the BCG easier is all...

 

[jelenko]

With the boron coating, the fouling should easily wipe off with just about any cleaner.

 

[DGP4]

I don't know, but I can tell you it is harsh enough to remove bluing. I clean the BCG on my ARs with Bore Tech Carbon Remover, it is completely safe and it works great

 

[Stugots]

I have used Bore Tech Carbon Remover as well as MPro 7 and a few other brands of carbon remover, but I still have to take a knife to scrape the carbon that has built up on the bolt on the shoulder by the gas ring. (It would be nice if I could have just dropped the parts into a container with something to dissolve the crud etc.)

 

[DGP4]

Looking at the directions on my CLR container, the only metals it says not to use on are brass, copper or aluminum. It also says to rinse off after 2 minutes when using full strength. So, I'd say it would probably be safe to use on your BCG as long as you rinse it off with 2 minutes. I think at worse it might etch the surface of the metl very slightly. Your call of course. If you try it, let us know.

 

[LVLAaron]

Plenty of good carbon removing products that are safe. Put the CLR back under the sink where it belongs.

 

[jelenko]

I have used Bore Tech Carbon Remover as well as MPro 7 and a few other brands of carbon remover, but I still have to take a knife to scrape the carbon that has built up on the bolt on the shoulder by the gas ring. (It would be nice if I could have just dropped the parts into a container with something to dissolve the crud etc.)

Careful with the sharp objects. Do not use them on the 'tail' of the bolt.
The difference between a brand new, in spec bolt tail and an out of spec bolt tail is a few 10 thousandths. The bolt tail is used to form a pressure seal.