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5/29/2009 5:42:53 PM EDT
My 7.5 model 1 upper is finally shipping (ordered 12/12). I have a question about the free float tube. I got the low pro gas option and am wondering what rail will fit on there if I take the aluminum tube off.

Will (for example) a MI/YHM free float fit over the barrel nut or is this some kind of special set up that needs to be changed for a standard nut.

Thanks. Can't wait for delivery on Tuesday.
6/5/2009 9:51:22 AM EDT
[#1]
So Im guessing if i order today, I wont get mine til xmas?

damn.
6/9/2009 4:48:29 AM EDT
[#2]
I have used both the M1S float tubes and the YHM lightweight railed float tubes on some of my uppers.  Niether the M1S float tube, nor the YHM float tube use a standard barrel nut.  They each have their own special barrel nut and they are not interchangeable with each other.  

I haven't used the M1S gas blocks, but I've used a couple of other low-profile gas blocks and haven't had any clearance issues with using either the M1S or the YHM float tubes in a length that extends over the gas block.
6/9/2009 2:55:45 PM EDT
[#3]
Thanks guys. I got the upper and looks like I'll have to take the barrel and nut off. I'm thinking of putting a MI T7 free float on there. It's already got a low pro gas block. Just a standard barrel nut and install the rail? Can't think of anything else. Seems to be pretty straight forward.
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