I want to get the Mako group Pentagon magazine coupler and also the Obama coupler. But they say that it's made for ulti mags and I'm wondering with the minor modification do you think you could use Lancer mags to fit into the coupler. The coupler itself acts as the base plate. I don't own any AR magazines and I don't want to buy two different mags and the coupler to see if I can make it work and but if the difference isnt that big then I will and I will just roll with it and make it work but someone with experience would help.