Cross Machine Tool DRT™ 13.0" M16/AR15 Handguard- DRT™ Rails feature a hardcoat anodized finish that has an earthy dirt color found in different regions of the globe. Just as the color of the earths dirt varies so does the color across the DRT™ Rail. May vary from light brown to dark brown depending on batch.
Rail- 6000 series extruded Aluminum Milspec Type 3 Class 2 Hard anodized
Barrel Nut- 7075 Aluminum Type 3 Class 2 Hard Anodized