Detail Information:    • Proudly Designed and Made in USA
• Clever Top/Bottom Two-piece Design with Integral Spinal Cords/Alignment Housing for Great Fit
• Designed with Innovative Alignment Tabs at the Front for Perfect Fit with the Standard Triangular Front Cap
• Fits Rifle Length Model 4/15
• Includes Four Picatinny Rails Each with 27 Continuous Slots
• Great Zero-retention Capability for All Accessories Installed on the Rails
• Easy Installation with No Modification to the Barrel
• Proudly Made in USA with Superb Design and Production
• Black Rubber Rail Guards Included