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)