This sample pic is from google showing a Colt model AR6520 carbine model with pre ban features like the flash suppressor, bayonet lug, high cap mag, and collapsible buttstock.
This is a Colt Match Target model MT6520 carbine with post ban features, no muzzle device (a muzzle brake could be permanently installed), no bayo lug, 10 round or under capacity mag, fixed stock (permanently pinned collapsible stock could also be used).
Just google these two sample models that I shown and it should show you plenty of pics.