You mean coffee? Sure, I make it all the time. Does a great job.
If you shoot a Glock you don't even have to clean them.
Why bother? I shoot frequently, and clean my guns after every session. A $12-15 bottle of solvent lasts me at least a year, probably longer. Mixing up something that isn't intended for firearms, may or may not work, and needs to be labeled and stored seems like false economy.
That's because it explodes before it gets too dirty, right?If you shoot a Glock you don't even have to clean them.