Magpul MAG002-BLK Original Magpul Made of Rubber w/ Black Finish for 7.62x51mm NATO Mags/ 3 Per Pack $9.45
Magpul MAG564-BLK PMAG Ranger Plate 7.62x51mm NATO Compatible w/ PMAG LR/SR GEN M3 Mags Black Polymer/3 Per Pack $23.67