This upper is listed on DPMS's website as the "Lite 16." This upper has pre-ban features (birdcage, bayo lug, etc.).
Upper is "old school" with A1 sights and thin barrel profile. It has had 100rds through it. Interestingly, it shoots to the same point of aim with either M193 or M855. If you want light and old school then this is the upper for you. I put this on an RRA lower with tele-stock and the carbine only clocked 6 1/2 lbs!
Barrel was broken in according to DPMS's recommendations. It is a 1:9 twist. Handguards are "Polar" type.
$350 + shipping from zip 20707. Since this is an Upper only no FFL required to purchase. Upper is complete with b/c/ch.
Payment by USPS money order only.
Pictures are here:DPMS Lite 16 Pics