Eh, I still don't like them. I ordered an Aero slick side upper without the forward assist (because I can't get my go-to Anderson one anymore), and am having to return the Aero for the 2nd time. I can't get charging handles to fit in them. Anderson, Bravo, Geissele, and Strike Ind. won't fit, I discovered the new Rise Armament handle will fit my Aero though. It's going back. Again. And will probably buy a standard stripped upper instead, haven't had charging handle fitment problems with that model.
FYI...my cheapy Bear Creek Arsenal side charging upper doesn't have a forward assist, doesn't need it with a side charger...
