NCStar DLG-099 M-LOK Handguard With 1913 Picatinny Polymer Black For AK-Platform The Quick & Easy Installation M-LOK Handguard features 1913 Mil-Std Picatinny Rails On The Top And Bottom Halves Of The Handguard Making It Great For Mounting Vertical Grips And Accessories. M-LOK slots Are located On Both Sides Of Lower And Upper AK Handguard. The Polymer Durable And Lightweight Construction features a Sleek Design. Material: Polymer