Hi Everyone-
NP3 is a ROBAR proprietary finish, it is a silverish-bronze color that is similar to Nickel.
Roguard is also a ROBAR proprietary finish. It is what they claim is their toughest black finish.
They also have another high-tech finish that can be used on steel, aluminum, and even synthetic stocks called Polymax. That product is available in a variety of colors.
I've heard lots of great things about BearCoat, too. Certainly worth a peek at their web site.
Check out
http://www.robarguns.com and
http://www.bearcoat.com
Regards,
~ Blue Jays ~