Seekins KeyMod + M-LOK Rails provide the best picatinny mounting system for accessories on any KeyMod or M-LOK hand guard. Machined to Seekins Precision renowned accuracy standards the rail is derived from 6061-T6 aluminum and hard coat anodized in matte black. These rails also feature an alignment stud that prevents unwanted movement. Engraved to show proper mounting direction and designed to be attached without having to remove or reach inside the hand guard Seekins Precision KeyMod + M-LOK Rails are field adaptable and greatly enhance the versatility of any rifle. Features: Black finish Field adaptable and easy to install M-LOK 5-slot rail section Includes mounting screws