Magpul PMAG M3 Ranger Plate AR-15 Magazine Floorplate Polymer Black 3PK

From MidwayUSA

The Ranger Plate is a must have when quick and precise magazine changes are required and it comes in especially useful when under high stress situations or when tactical maneuvering is required. Features include an integral loop, floorplate lock and mag identifier. The Santoprene loop is a direct replacement floorplate that may be installed onto 5.56x45mm M3 Pmags.