No kidding, why get fancier with a design than it needs to be? Two takedown pins and you're in business with a separated upper/lower.
Never understood that with the "quick change caliber" designs either. Ehhhh the AR can already be changed in caliber pretty dang quickly.
Are we really still using that "M4 Style" for back of a better term buttstock too? Has anyone tested durability of those against anything Magpul, BCM, B5 Systems, whatever?