UTG AR-15 20" Free-Float Mid-Length Quad Rail System

• Precision machined with maximum strength
• 4 mil-spec Picatinny rails for versatile accessory applications
• Simple installation, no gunsmithing or tools required
• Integral assembly alignment front tabs and spinal cords to guarantee perfect, solid fit
• 12' long top & bottom covers
• Fits rifle length Model 4, 15/16, & variants
• Hard anodized finish for wear resistance
• 20 pieces of rubber rail guards included