NIB Talley steel screw-lock detachable scope rings, for 30mm tube. Matte finish, medium height. Part # M400004. These rings are new in box and have had the Armor Black (H-190) Cerakote finish applied. I have three sets. I have one additional set, medium height, matte finish, no Cerakote applied. I also have the same rings (two sets) in matte finish, no Cerakote, low height. Part # M4000003.