Gun Blue Stick Instant action gun blue pen-type dispenser makes it easy to touch up small marks and scratches with a minimum of preparation. Pro-duces a rich, dark blue which will not rub off or discolor. Ideal for use on finger guards, barrel tips, etc. For best results, clean with G96 Gun Degreaser and finish with G96 Gun Treatment, G96 Gun Oil or G96 Synthetic CLP Gun Oil.