AU 7″ Drop-In AR15/M4 Carbine Length Quad Rail


AU 7″ Drop-In AR15/M4 Carbine Length Quad Rail


The AU 7″ Drop-In Carbine Length Quad Rail is a high quality 2-piece picatinny forend replacement for all mil-spec AR15/M4 carbine length plastic hand guards. They mount exactly like the factory hand guards but dissipate heat much more efficiently. Rails are located at the 12, 3, 6 and 9 o’clock positions, there are also 5 quick detach anti-rotate swivel ports located throughout for ideal sling attachment. The AU design ensures a secure fit with no movement on the weapon while providing a solid mounting platform for accessories. The precision machined rails enable consistent repeat of zero for any accuracy dependent devices such as optics or lasers.

Made in USA


  • No modifications to the firearm are required.
  • Installs in minutes
  • Four MIL-STD Picatinny rails at 12, 3, 6, and 9 o’clock
  • Five built-in anti-rotate sockets for QD sling swivels
  • Lifetime Warranty


  • Weight: 8< ounces
  • Machined from 6061/T651 Aircraft Grade Aluminum
  • Type 2 Class III Mil-Spec hard coat anodized


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