One of the best bang-for-the-buck uppers on the market today. - Del-Ton Pre-Ban Flat Top Light Weight Barrel Assembly

I have several of these I have picked up over the years, and I have had zero/no issues out of any of them. This upper is a first rate no-nonsense piece of hardware for a very reasonable price considering what all you get with it. Chrome lined barrel, front sight base, lightweight (but not pencil) barrel, comes out of the box ready to attach to an upper and take it shooting.

Accuracy is very reasonable for a chrome lined barrel, about 2.5MOA with 55 grain junk/mil-spec ammo, about 1.25MOA with 69 grain match grade stuff. The barrel weight is just about perfect for a patrol/pack it around type rifle - not as light as a true pencil barrel, but not as heavy as a government profile barrel. Pencil barrels tend to overheat after just a few rounds and accuracy suffers, and heavier barrels are just not a lot of fun if you have to carry the rifle around all day. This is right in the middle - will take a fairly reasonable string of semi-auto fire before it gets to hot, but still light enough you won't mind carrying it around in the field all day.

Coupled with a standard mil-spec-ish lower and a rear flip sight of some kind, you'll end up with a rifle that's about 5.8lbs dry weight. Add something like a Sig Romeo red dot and a fully loaded 30 round pmag, and you'll be just a whisker over 7lbs at cocked-locked-and-ready-to-rock-doc weight. A typical AR comes in closer to 8.5 to 9lbs in ready-to-rock state.

There are a few caveats: the 1:9 twist barrel would be right on the edge of being able to stabilize a 77 grain bullet, so be aware of that. This is also standard phosphate finish on the BCG, which isn't bad by any means (it's what the military still uses to this day), but you do want to pay a little closer attention to making sure it's got some lube in it as compared to a nitride or nickel boron BCG.

So that's what I got - I think this is a near perfect upper for a rack-grade/take on patrol/rifle training course/truck gun/SHTF/etc kind of rifle.