I have had several guns re finished by ROBAR.
2 revolvers and one semi auto.
This 29-3 ws formerly blued and now wears ROBARS NP# finish:
I had them do a two tone finish on this one. Originaly I wanted it all done in ROGUARD but they told me that the gases generated by the 500 S&W would burn it off the cylinder face.
NP3 on the cylinder. Comp amd cylinder latch and ROGUARD on the frame and BBl.
Hereis my 84 vintage CZ 75 all NP3'd
As far as the finishes are concerened they are hell for durability. Depending on what you want either will serve you well. I will tell you this, the NP3 is slick (as in slippery) and makes manipulating the slide on an auto a little tricky.
If your having a revolver done, it's not that much of a concern.
The ROGUARD is reflective to a point (it's not a dull black but not shiney either) and will cath the light a little.
I like it and if I were to do another gun I'd use it exclusively.
Turn arund times are a little on the slow side but ROBAR won't release your gun till it's perfect.
I highly recommend them.