I've looked and it's not the same. The Echo clips aren't like the aftermarket Chinese ones, the ears on them are short and probably more well built. I've bought P/C kits before that had circlips in them that weren't much stronger than bailing wire, you have to replace those or risk them coming out. Those are the silver colored ones with the one long ear on them. The Stihl clips are an iffy fit since they just barely are thick enough to cover the edge of the piston pin. The AM pistons appear to have a bigger groove than the Stihl pistons.I've seen these type aftermarket clips take out engines, the ears tend to break off and trash piston and cylinder. It's well documented if you look.