An anchor having a nose portion and a tail portion insertable into a bore hole of in a bone, where the tail portion includes radial fixation features for engaging the inner surface of the bore hole when the tail portion is inserted into the bore hole. A suture can be attached to the nose portion through a through hole in the tail portion. The suture can be tensioned to radially expand the nose portion into engagement with the inner surface of the bore hole. The rigid tail portion provides a backstop limiting axial movement of the nose portion when the suture is tensioned to prevent the nose portion from being inadvertently withdrawn from the bore hole. The rigid tail portion can also increase the amount of tension applied to the suture and correspondingly the radial expansion of the nose portion.
