Most of the times, a "degrease" of the spot and area around it, and a dab of '44-40' cold blue on a Q-tip, burnish it with your palm, another dab of 'cold' blue, and repeat till it blends in...but rememebr ANY 'cold blue; is just that a 'temporary fix' and may not hold up long term,,,,,as Flatgate said, being the frame is now 'steel' gotta get it buffed,polished and reblued.......the frame of a Bearcat is the actual gun, so needs to be treated and handled as a "firearm" if you need or try to ship it out anywhere to get the work done (other "parts" can be sent out,mailed ,whatever no need for "special" handling)......check with any local gun shops around you , that may do refinishing, or calll the factory and ask them..........
