I have a Burris Fullfield E1 (not a Fullfield II; I haven't seen a FFII E1, just the Fullfields). Mine is a 2-7x, been using it on a general-purpose AR with no problems. Love the E1 Ballistic Plex reticle for longer-range targets.
It's not too heavy, but it IS rather large and bulky, with the adjustment covers/caps being larger than really needed, IMO. If sleek is what you seek, this probably ain't it.
"That means that no matter how we reform health care, we will keep this promise to the American people: If you like your doctor, you will be able to keep your doctor, period. If you like your health care plan, you'll be able to keep your health care plan, period. No one will take it away, no matter what." – President Obama, AMA speech, June 15, 2009.
see 13:20 - 13:58