Apparently this result is insufficient for American Milsim.
They suggested a drop of JB Weld which can be easily filed off after the event is over. This seems like a smart compromise over removing any material from the rifle itself.
I've never worked with this stuff before but I'm assuming a drop or two of it to create a mound that will prevent the selector lever from moving into the full auto position will do the trick.
I can then reset the mosfet to 100% ROF
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