The Magpul MAG590 M-LOK Polymer Accessory Rail 5-Slot is designed for use with all M-LOK compatible hand guards and forends, providing a budget-friendly way to attach 1913 Picatinny spec accessories such as lights, vertical grips, and more. Constructed from Magpul’s proprietary reinforced polymer composite, this rail section combines impressive strength and durability with a lightweight profile. Beveled ends help reduce snagging and eliminate sharp corners for a smoother setup. Measuring 2.5 inches in overall length with 5 usable slots, it includes all the hardware needed for direct installation on either aluminum or polymer M-LOK slots. Proudly made in the USA.