Fortis Manufacturing’s AR-15 Night Rail Free Float Handguard was designed to be easy to install and mounts to the upper receiver with 360 degrees of contact. The end result is a rail that not only looks amazing, but one that is exceptionally lightweight and robust as well. The Night Rail features a full length Picatinny top rail, shot lengths of Picatinny rail at the 3′, 6′ and 9′-oclock positions and M-LOK accessory mounting slots on the side and bottom flats.