Gen III AR15/M16 Round Free Float Carbon Fiber Forearm, 15" length.  The carbon fiber forearm is light weight high strength and also reduces the amount of heat transferred to the shooter during rapid fire.

This Gen III forearm in Natural Finish comes with 4 rails, 1 8.5" rail on top and 3- 3" rails at 3,6 and 9 O'clock positions. The forearm is constructed of wrapped carbon fiber, with an aluminum barrel nut and collar. Total length of the forearm is 15.5" and weights 16.6oz. including barrel nut.  The inner diameter of the barrel nut is 1.075" Custom barrel nuts with larger ID for larger diameter barrels can be made.  The ID of the tube over the barrel is 1.75 inches.  Tools to install forearm not included.  Tools to install forearm not included.