I have an ar pistol with anderson lower I am not quite sure the barrels for the 2 uppers but one is 7.5 and other is 10.5 uppers come as pictured..Both uppers come with flip up sights and optics... $1000 obo message if interested.... I will get better specifics when I get home... wasnt wanting to sell it but need too.. and also comes with a 40 round mag and a 30 round mag with atleast 30 rounds of ammo also