Need the help of the minds here. 1 of the used cheek pads I bought from the CMP on the Friday sell a thon came and it is different than anything I have seen before. Sorry no picture yet, but working on it. In description the overall shape is the same as a standard M1 cheek pad. However this one has a slightly smaller cheek pad area (the raised area) and it has sticking all the way around the cheek pad itself. It also has the standard sticking along the outside edge. There are no markings that I can find. Any info would be helpful.