This is the Standard Length handguard, replaces the standard factory lower and upper wooden/plastic handguards. Easy Drop-In installation. No gunsmithing required for most installations. Includes mounting bolts and tool. KeyMod slots at 8 angled surfaces for mounting your accessories. Includes 2.3'' Short (3 KM) KeyMod to Picatinny (5 Slot) Accessory Rail. Top handguard is pre-drilled and compatible with NcSTAR's micro Dot Reflex optics. Offering the lowest Micro Dot mounting position to co-witness with the AK Iron Sights.