I'm guessing the 1lb estimate is close, the tube is rather beefy. The handguards themselves weigh nothing in comparison.
If you're thinking of retrofitting the setup to another rifle the only thing I've ever found online about it is the extreme difficulty in doing the retrofit, though I forget the details, something about the whole barrel/receiver/nut mating.
Dan Miami, FL
You can lighten the free-float tubes. You can also modify the issue KAC M5 rail to go over them. These are on an issue GI barrel and a Rock River.
Last edited by sinister; 08-05-10 at 22:01.
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