Won’t work with ar15, ok for .308 - San Tan Tactical STT Ultra Grip Extended Magazine Release

Bought a couple of these for AR15. When mag latch bottoms out in blind hole there is too much travel possible and mag latch drops out of slot when releasing mag. Tried on two different lowers, an Aero and a SOLGW. Also tried with two different mag latches, an Aero and a Geissele and the buttons don’t pull down far enough before bottoming out the blind hole. They do work ok on a couple of Aero M5 308 lowers