Well, after being corrected in my thinking by a few nice pm's re: asking about unreviewed items I decided to ask my lgs to order a Windham Weaponry 308 of this persuasion:
http://www.windhamweaponry.com/pdf/NewTechSeets/SRC%20R16SFST-308%20MSRP%20PRICING.pdf
After the distributor sent the wrong item and it was returned and the proper rifle was sent and money changed hands I had a 16" WW 308 to look at.
The factory reports a rifle weight of 8 pounds. This one weighs 7 lb 10 oz. (No mag, sights or sling).
Empty magpul pmag weighs 5.8 oz. The protecter that fits on the top of the mag weighs 0.4 oz.
The simple carry strap/sling weighs 2 oz.
The purchased Magpul mbus rear sight weighs1.3 oz and the front sight weighs 1.2 oz.
The carbine style sliding buttstock weighs 7.0 oz.
Charging handle by vernier measurement is 8.048" long and weighs 1.3 oz.
The bolt carrier group weighs 1 lb 2 oz and is 8 and 7/16" long with the bolt in the rearward 'locked' position.
The front portion of the bolt carrier is not round but seems to be from a piece of steel about 1.182" in diameter and the smaller diameter
rear portion is 0.930" diameter.
The firing pin is 3.940" long and has several steps. At the tip it is 0.077" diameter, then is 0.103" diameter then is 0.154" diameter. It weighs 0.4 oz.
The bolt weighs 2.8 oz and is about 0.889" diameter at the lugs and the body has slight steps but is 0.661 " mostly.
The bolt carrier has the letters JC stamped on the left side of the front portion of the carrier. The carrier is 7.87" long and weighs 14.4 oz (with key installed).
Trigger pull is over 7 pounds. The lowest I measured was 7 pounds, highest was 7 lbs 8 oz and most pulls were about 7 lbs 6 oz. That obviously will need to be improved.
It's not been shot yet--except at factory.
It will have sights and scope added and then I'll try to get some accuracy information to post.
The fit and finish are really very good. The charging handle operates smoothly. The recoil spring is stout, as expected. The rifle is well balanced in my opinion and, with the 16" barrel is quite handy. Ideally, at least to me, a 308 AR would weigh 5 pounds for carry and 10 pounds for shooting. But this looks like a very good compromise.
At some point in the distant future I'll post a picture (if I ever learn how). As an old fogey I'm doing pretty good just to write this stuff.
Added: It was shipped to the dealer from the distributor in a large box--it looks like two rifles were shipped by the factory in that outer box. The inner cardboard box contained a plastic gun box with foam and the accessories- sling, magazine, papers.