The Magpul L-Plate is a replacement for the standard solution for the current version of aluminium 30-round USGI magazines with a rubberized pad. The "bumper" pad is made from patented Santoprene material, with a layer molded onto a stainless steel plate.
The low-profile L-Plate adds an additional level of control over the magazine. Thanks to the rubber coating, it also protects the magazine from recoil. It is intended for standard 30-round aluminum USGI NATO magazines.