I'm sure "featherweight" means different things to a .308 barrel than it does to a .223 one. I doubt you'll see anyone make a .308 barrel with the same dimensions as a featherweight .223 barrel.
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Actual featherweight would be fine on an AR10.
http://www.sturmgewehr.com/bhinton/A...AR10_Right.jpg
^^^ Recipe for trouble @ my house:
Remove bath towel from linen closet,
Remove firearm from safe (receive hairy eyeball),
Place firearm on bath towel for photo-op,
Instant Conniption Fit! :p
PS: Nice Gun
That is one beautiful AR-10, armakraut.
There's one big problem with that gun, it isn't mine.