Two grip adapters recently came my way. The black adapter arrived attached to a King modded Highway Patrolman and is clearly marked "Tyler'. The polish brass one arrived on a W&K 3rd model 44. It has no markings, is heavy, appears to be solid brass and feels slightly thicker than the black one. Also, the rivets attaching the retaining prongs look slightly different As I have never seen a brass "T Grip"... I was just wondering. Thoughts?