If you're not too worried about being very light weight, take a look at WOA's handguard's..........they are fairly new, very nicely finished & have a long nut for solid mounting.
I used several of them in the past year & the price is unbeatable at $140, but they only offer 2 lengths & is does require a special (& expensive) wrench.
If you want a pic, let me know & I can take one.
If you end up deciding to use one, I will loan you the wrench.
MM
WOA Handguards
