The Midwest Industries M-LOK Picatinny Rail Section is a great addition to your M-Lok handguard. Available in different lengths, these rail sections allow you to mount accessories in any position desired on your M-Lok compatible handguard. M-Lok mounting hardware included. This high quality MIL-SPEC 1913 rail is manufactured from 6061 hard coat anodized aluminum. FeaturesMil-Spec 1913 railConstructed of 6061 hard coat anodized aluminumM-LOK mounting hardware included