If you're lucky, someone might figure out how to add another slot for a tail in a lightning link so that it would work with both AR10s and AR15s (I believe the solid portion at the back of the bolt carrier is longer on the AR10). There are manufacturers out there (Circuits on AR15.com is the only one I know of, but I bet others do it) that can modify a "standard" 3 round burst trigger pack to allow it to work with a LL.
Kharn
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