Great looking FN AR! The Accupoint scope is on my short list...
The .308 Winchester is one of my favorite calibers. It is a little overkill for house clearing, but from urban worst-case scenarios to hunting ranges that extend out to 300 plus yards to potential accuracy out to 1000 yards is just amazing versatility. Granted, the platform and trigger-puller really make the difference, but its definitely my favorite hunting round for deer. Its probably a little on the short side for larger black bear and moose, but Ive seen a few elk go down from a well placed .308.
I really think 16 is a waste for .308. It just doesnt give you the potential for performance. I think 18 is the minimum and you could go out to 26, but that too I think is beyond most practical uses. For the best balance between handiness, accuracy and squeezing out the most velocity, I would keep it between 18 to 22 inches.
Weight can be an issue if you plan to carry it for hunting or that worst-case scenario. If youre driving right up to your deer stand, you probably dont have to worry, but if youre hiking the canyons prevalent in some hunting areas of the west, you will be a little more concerned.
I have both FALs and an M1A Bush (set up as a Scout). I really like the 18 barrel length and accuracy is more than enough for hunting and even with a low-power IER scout scope, I was making man-sized silhouette hits out to 500 yards (hold over was quite a bit, but once dialed in, it was consistent hits which even surprised me).
For bolt guns, I just prefer Savage. I have a Model 10 FCM Scout and the newer Precision Carbine. Im happy with both and impressed with the PC
its much more accurate than me.
My preference is the M1A Bush; it is on the heavy side, but its handy, accurate and reliable. Your FN AR looks handy for it's size as well and will be a great rifle. It can be used for hunting and serious social engagements with effective performance out to ranges well beyond typical combat ranges. I do love my ARs and have one sitting by the bed, but the .308 is much more capable for a wider ranges of uses if you want a more serious ranch or hunting rifle. Congrats!
ROCK6