Knight’s Armament M4 RAS Drop In Quad Rail Kit w/ Three 11-Rib Panels

Knight’s Armament M4 RAS Drop In Quad Rail Kit w/ Three 11-Rib Panels The M4 Rail Adapter System is one of the most iconic and heavily issued items in US military history. This M4 RAS quad rail installs using the delta ring and drop-in handguard method. Heavier barrel contours may require modification to the handguard. Bottom rail is removable for use with a M203. Ships with three 11-rib rail panels. Does not ship with vertical grip. Specifications: Weight: 8.9oz Length: 6.25″ Free Float: No Material: Aluminum Finish: Black Anodizing