Not that I've found yet & I've been looking for quite a while.
I've tried the "slimline" electronic types quite a bit & discovered 2 things.
1. Slimline muffs ram the internal foam against your ear & this is uncomfortable.
2. Slimline muffs seem to be built "upside down" with the cutout at the top where it does absolutely nothing, but they leave the thicker part at the bottom where it still contacts the stock.