Various mfg M16A2 uppers and A1 upper.
From left to right;
Colt A2 upper with Colt A2 sights med gray .223 marked, no fwd asst or port door, ejection port proofs, lightly used.
Colt A2 upper with Colt A2 sights dark charcoal .223 marked, no fwd asst or port door, new take off.
Armalite A2 gray upper with A2 sights, fwd asst and port door lightly used nice gray finish $199 see new individual listing click here.
A2 contract upper marked K with A2 sights, no fwd asst and port door, lightly used charcoal. $229.00 see new individual listing click here.
A1 contract P M marked upper with A1 sight, aftermarket windage drum, used and refinished and early large round forward asst.