- Mil-Spec 1913 rail
- Constructed of 6061 hard coat anodized aluminum
- Made in the USA.
A great addition to all KeyMod handguards, the 2.1" and 3.75" rail is proudly made in the USA. This high quality MIL-SPEC 1913 rail is manufactured from 6061 hard coat anodized aluminum. When installing rail torque screws to 35 inch pounds.