Rise Armament RA-905 M-LOK Handguard, Fits AR-15 Rifles, 13.5, Black RA-905-135-BLK The Rise Armament M-LOK AR-15 Handguard combines all the features you want in a handguard. Durable yet lightweight" it is M-LOK compatible with a Picatinny upper rail. It even boasts six quick-disconnect sling swivel mounting points that span 360 degrees around the handguard for maximum customization. The slip-on handguard is simple to install" and its free-floating design helps increase accuracy. The slim center is easy and comfortable to grip for more controlled" accurate shooting.