• 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 Middle Length Model 4/15
• Includes Four Picatinny Rails Each with 18 Continuous Slots
• Great Zero-retention Capability for All Accessories Installed on the Rails
• Easy Installation with No Modification to the Barrel
• Black Rubber Rail Guards Included

Note: This quad rail system is design to fit with standard AR15 gas tube. The compatibility with any special piston system is not guaranteed.

Material Aluminum
Weight: 14.7oz
Pieces: 2
Rail Type: Picatinny/Weaver
No. of Rails: 4
Length: 8.68in
Width: 2.44in
Height: 2.44in