Available in quad-rail and customizable versions. Simply remove your stock handguard and insert these in its place. The bottom section removes easily to accommodate accessories. Customizable versions include one full-length top rail and one 3' elevated rail. Rails can be mounted at 45 degree intervals and additional rails can be purchased separately. Made from lightweight aluminum and hardcoat anodized. *Note* Colt carbines require a special model, see carbine part details.