All SLR Handguards are Type III Class 2 BLACK Hardcoat Anodized

Ion  Mid Handguards have a full top rail (continuous).

Low profile 3 slot picatinny built in rails up front at  3 and 9 o'clock

Bottom and 45deg's are  full KeyMod or MLOK

All SLR KeyMod's double as built in QD swivel mounts (QMod)