Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Polymer Rail Sections provide a cost effective method of attaching various 1913 Picatinny spec rail-mounted accessories such as lights and vertical grips. Includes 7 usable slots and a maximum overall length of 3.3 in. Injection molded from a proprietary reinforced composite for enhanced strength and durability, our M-LOK Polymer Rail Sections are light weight and feature beveled ends to reduce snagging and eliminate sharp corners and edges. Includes all hardware necessary for attachment directly to M-LOK Slots on either aluminum or polymer hand guards and forends. Made in the USA.