The Magpul MAG409 MOE Polymer Accessory Rail 11-Slot is built for all M-LOK compatible hand guards and forends, offering a reliable way to mount 1913 Picatinny spec accessories like lights, vertical grips, and more. Crafted from Magpul’s proprietary reinforced polymer composite, this rail section delivers outstanding strength and durability while keeping weight to a minimum. Its beveled ends help reduce snagging and remove sharp edges for a smoother, snag-free setup. Measuring 5.5 inches in overall length with 11 usable slots, it comes complete with all the necessary hardware for direct attachment to aluminum or polymer M-LOK slots. Proudly made in the USA.