Detail Information:    • Proudly Designed and Made in USA
• Fits Rifle Length Model 4/15 with Standard Delta Ring Assembly, Barrel Nut, and Triangular Front Cap
• Lightweight, Slim Tubular Profile for Most Positive Handling
• Top Rail Extending to Upper Receiver for Continuous Mounting Platform
• Includes 2 Short Side Rails with 2 Slots Each and 2 Long Side Rails with 4 Slots Each for Accessory Configuration at 3, 6 and 9 O'clock
• Precision Machined from Aircraft Aluminum with Black Anodizing
• Simple and Friendly Installation, No Required