The UTG Pro M4/AR-15 Carbine Length Drop-in Quad Rail with extension top rail extends to upper receiver to form continuous mounting platform.The top/bottom two-piece design has integral spinal cords/alignment housing for a perfect fit with the barrel nut and round front cap. It is precision CNC-machined from from aircraft aluminum with anodizing/engraving. The four Picatinny rails each have 14 slots with great zero-retention capability for all installed accessories. Easy installation with no modification to the barrel. Black rubber rail guards included. Note-This quad rail system is designed to fit with standard AR-15 gas tube. The compatibility with any special piston system is not guaranteed.

• Type: Railed Handguard
• Firearm Type: AR15 Carbine
• Firearm Model: AR-15
• Material: Aluminum
• Finish: Anodized
• Features: 14 Sections Per Rail
• Positions: 4
• Rails: Picatinny

*Item must be returned in unused condition and in the original manufacturer's packaging (if applicable). If an item arrives non-defective and accurate to its description, this guarantee does not apply and returns will not be organized in those situations. Please confirm compatibility and specifications with us regarding item UTG Pro Pro Quad Rail Drop-In Handguard before purchasing if you are unsure.