• T6 Aluminum Body
  • AR15 Platform
  • Steel Barrel Nut
  • Lightweight
  • Standard Barrel Nut Included
  • Key Mod System
  • Rail System Slides Over Barrel Nut , And Is Locked Up Against Receiver With 3 Screws
  • Tight Fit Up Against Receiver, Which Allows For A Monolithic Top Rail
  • 12" Length
  • Internal Diameter: 1.36"
Check out this prodcut on my website! http://www.battlecreekarmory.com/product-p/gtr55612rpk.htm