The Magpul MAG592 M-LOK Polymer Accessory Rail 9-Slot is built for seamless integration with all M-LOK compatible hand guards and forends, offering an affordable way to mount 1913 Picatinny spec accessories like lights, vertical grips, and more. Constructed from Magpul’s proprietary reinforced polymer composite, this rail section delivers outstanding strength and durability while keeping weight to a minimum. It features beveled ends to minimize snagging and eliminate sharp edges for a smooth, snag-free profile. Measuring 4.1 inches in length with 9 usable slots, it includes all the hardware needed for secure attachment to either aluminum or polymer M-LOK slots. Proudly made in the USA.