Magpul MAG212 PMAG Ranger Plate is a floorplate replacement for the 5.56x45 PMAG and EMAG that incorporates an integral loop similar to the original Magpul USGI Ranger.
Magpul PMAG Ranger Plate AR / M4 Gen M3, Black, 3 Pack: MGW
Ranger Plates & MagPods for PMAGs - Warrior Poet Supply Co