The Seekins Precision 0010560083: Seekins' M-Lok Rail presents the optimal Picatinny platform for accessory attachment on any M-Lok hand guard. Manufactured from sturdy 6061-T6 aluminum, the rail incorporates an alignment stud that eliminates undesirable shifting. Marked for correct mounting direction, it has been engineered for easy attachment without the need to detach or access the inside of the hand guard. Inherently adaptable, Seekins Precision M-Lok Rails amplify the adaptability of any rifle. The package includes mounting screws. The 13 slot model comes with a matte black hard coat anodized finish.