Graft in Tip is Showing Through Skin? Is It an Implant? 6 Months Post Op Rhinoplasty

Almost undoubtably, this is a cartilage tip graft and not an implant.  This is a standard rhinoplasty technique, while not as commonly done as it was a decade ago, is still a valid tip reshaping technqiue. The outline of such grafts can ultimately appear as thin nasal skin contracts around it many months later in some patients. Whether this is worth revising or not is a discussion that you need to have with your original plastic surgeon. It is a balance of how much it bothers you versus is it worth the effort of a tip revisional procedure in a nose that otherwise has no other problems.

What you are describing sounds lip a nasal tip graft that many surgeons use to augment the tip and refine the shape.  At 6 months it is a bit early to go back in to remove it.