I have three 6390s, black, coyote, and MC. I was about to buy a 4th, which would be a 2nd MC, but thought I'd first ask if there's a decent DIY option (for the coyote) that would also be hundreds cheaper and not difficult.
What got me on this direction is the Nub Mod upgrade. I like them, and it seems like SL changed the dimensions of the thumb retention lever. Ordering a new holster would potentially be the same dimension as the black...incompatible with the Nub Mods.
So now we're here as a DIY question.
Pic of thumb retention differences:
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