Well, I have a Yugo M70AB2 Kalashnikov style rifle, a M1 carbine, a M91/30 Mosin Nagant rifle, CZ52 pistol, C96 Mauser pistol, Webley MkIV revolver, etc. and when I go looking for accessories (like at the gunshow at the Civic Auditorium today), I tend to look for authentic, as-issued magazines, clips, pouches, slings, and gear, more as a curio or collectible historic item.
If I were to get an AR, my first choice would be an AR-15 matching my original 1966 qualification rifle: no forward assist, triangle hand guard, etc., and matching 1960s era kit--sling, magazines, pouches, etc.
However, if I were to build a modern sporting AR rifle, I would want one along the lines of an M4 flat top, but with bull barrel. And if I were to have it duracoated chartreuse green, those mags advertised would be the purr-fecto cat's meow match up.