Rail/gas block?

[13MPG]

Question for you all. Will a LaRue 10” rail or a Daniel Defense M4 10” rail cover a low profile gas block or shaved FSB on a mid-length barrel? I have a 14” Daniel Defense lite rail on a mid-length and it looks like a 10” lite rail would work but I am not sure on the other two. Oh, pics would be nice..lol

TIA for your help!

[Surf]

10" rail on mid length gas......

Standard USGI type FSB shaved will not fit under a 10" rail.

Depending on gas block size maybe it will cover, but most stick out about 1/8" - 3/16" on a 10" rail.