I bought a DPMS lower before the '08 election and it sat a long time in my gun locker. About 2 years ago I put it together and put an Armalite upper on it.
We sell Sporticals at my local Walmart and I really liked the slick upper. Midway USA had them on sale 3 months ago so I bought one. Last week I finally got a barrel mounted on it. (Armalite 16" A2 front sight) I pinned it to my over 4 year old lower and it fit like a glove. Like the two halves were meant for each other.
Everytime I have used my forward assist, it made the problem worse instead of better. I do not miss it or the dust cover. Beware, with the Sportical and no "bump" to deflect the brass, it ejects out at the 5 oclock position. If you are a left hander, you will get it down your shirt.
I'd recommend the Sportical (and the upper) to anyone who wants a light weight AR who is NOT left handed. We sell the Sporticals for $587 and can't keep them in the store.
kwg