Our new K-rail is a game changer. This M-LOK Handguard for AKs is comprehensive and user friendly to install, from the adjustable handguard alignment system to the different versions which accommodate a preferred sling attachment style. No gunsmithing required, though you may need minor fitment or filing depending on your rifle. 5 sided M-LOK, extended handguard length shields users hand from barrel and allows for more accessories. Allows for optic mounting on top rail, works with factory gas tube.