I run a B&T adapter with a NEA tactical magazine release with no problem.
Given the fact the B&T adapter does not hold the bolt open on the last round - you are going to have to manually manipulate the bolt anyways.
Thus, negating any benefit of the bolt release.
I am in the process of removing it from my current B&T equipped CZ and transplanting it to the one that still uses factory CZ mags.
L