It’s a fair question. There is not much clearance between the mag extensions and the mag. I bought a metal mag from czparts overseas. It was too big for the mag well and then jammed the release latch tight. Not enough latch movement available to unlatch the mag.
I had to remove the action from the chassis and remove the mag well. Then pop the pin out of the extended release and remove it to free the magazine.
I think that is is a great opportunity for some in that business, like Anarchy Arms, Area401, MTM and a few others.
Design an extended mag latch that will work with 13 and 15 round mags. I’m picturing something slightly angled forward or offset such that it would still fit behind an Arca rail, yet allow for heavy mags and the varying tolerances there of.
I know I’m not the only person that would get one right away.