All SLR Handguards are Type III Class 2 BLACK Hardcoat Anodized
Ion Ultra Lite HG's have a 5 slot picatinny rail at the front 12 o'clock position amd 2 picatinny slots at receiver junction.
Sides and bottom and 45deg's are full KeyMod or MLOK
All SLR KeyMod's double as built in QD swivel mounts (QMod)