Two keys intermittently bad

I have a Black Widow Chroma keyboard which is out of warranty. Two keys are intermittently bad, I'll type (n, for example) and then notice that it didn't take, so I'd have to go back and fix it. Are replacement key switches available? And if so, how do I order them? I'm comfortable with a soldering iron. The cost to send the keyboard back for repair (assuming there was a way to do that) and get it repaired will probably be more than it's worth, so I'm looking to fix it myself. Thanks