It doesn't look all that much like nickel to me. BUT, a computer picture can fool you pretty easily. I have had a slew of nickel plated Colt SAAs and clones, and bought some nickel plated and had some done. Now this is just my interpretation, but with polished platings/finishes; Nickel plating tends to have a yellow tint, whereas polished stainless will have a bluish tint, and chrome is just white in tone. With satin nickel, chrome, or stainless all bets are off because the satin reflects light differently. I would look carefully at the bottom of the receiver where the plating or polishing stops and see what that looks like.