Daniel Defense Omega Rail 9.0, Mid-length The Patent Pending Daniel Defense Omega Rail™ system is the most exciting rail system to hit the market in years! The Omega Rail™ is a free float rail system that allows the individual operator install it with the Allen Key provided and requires ZERO modification to the weapon! The Omega Rail™ features an integral QD sling swivel mount, with rotation limiter, and an uninterrupted upper rail platform. This light weight rail system is meticulously CNC machined from Aircraft Grade Aluminum and is Military Specification Type III Hard Coat Anodized. All the Omega Rail fasteners are military specification. The Omega Rail 9.0™ is designed to work with mid length AR15 gas systems. All Daniel Defense Rail Systems are built to the 1913 Military Specification and are 100% Quality Assurance checked for conformity to the specification. The Omega Rail™ comes standard with three black ladders to proctect the 1913 rails as well as the shooters hand. The Ladders are contructed from santoprene, which can handle heat up to 350 degrees. Features User Install ZERO Modification to host weapon Free float Integral QD Sling Swivel Mount with limited rotation Continuous upper rail with upper receiver Light weight Removeable Lower Rail Oval Shape to feel like traditional Hand Guards Materials & Construction Precision CNC machined from Aircraft Grade 6061-T6 Aluminum and Military Specification Type III Hard Coat Anodized for a rock hard lasting finish. The Omega Rail™ weighs in at an amazing 9.7 Ounces. Material: Aircraft Grade 6061-T6 Aluminum Finish: Military Specification Type III Hard Coat Anodized Length: 8.88" Width: 1.90" Weight 9.8 Ounces Inside Diameter: 1.08" Made in the USA! Additional Information SKU DD-10002 Manufacturer Number 01-005-10002 Product Weight 9.8 oz Rail Length 8.88" Width 1.90" Inside Diameter 1.08" Barrel Nut None Gas System Length MId-length Free Float Yes Continuous Upper Rail Yes Integrated Sling Swivel Attachment Point Yes Manufacturer Daniel Defense