The original stanag has had some improvements over the years. I have no problem paying for good firearms tech, but you need to look at the market you are selling to, like with he mdr. Police military and civilians have these mags already in inventory. If you made this rifle type with proprietary magazine which, let's face it, would cost 4x as much, desert tech would seriously cripple their sales. Competeing rifles would win out. If you sell a rifle at the same cost/quality bracket and then add $500 in mags, your rifle is now in new catagory at the bottom, and running an untested magazine type. New stanag pattern magazines don't seem to get a lot of complaints anymore and until we drastically change caliber/ammo type with these rifles why fix what isent really broken. Keep in mind they are looking for government contracts as well, which we all know love a good bargin.