Precision Reflex Carbon Fiber Forearm Gen 3 Armalite .308 15.75 in Natural. 75in. The latest PRi Gen III free float forearm Rifle length are constructed of light weight high strength carbon fiber aluminum and high strength steel for the best possible combination of weight and strength. The carbon fiber also reduces the amount of heat transferred to the shooters hand during rapid or high volume firing. The forearm comes with 4 rails a 8.5in rail on top and (3) 3in rails at 36 and 9 O'clock positions. Available in Natural Flat Dark Earth and Black. Forearm weights 1.17 Lbs. with standard rail configuration. ID of the tube is 1.9 inches. Specifications for Precision Reflex Armalite Carbon Fiber Forearm: Manufacturer: Precision Reflex Gun Make: Armalite Gun Type: Rifle Condition: New Quantity: 1 Features of Precision Reflex 14 inch GenIII Armalite .308 Carbon Fiber Forearm: Gen III Armalite 308 14" Free float Forearm The overall length is 14.75" from forearm collar to the end of the tube The latest PRi Gen III free float forearm is constructed of light weight high strength carbon fiber aluminum and high strength steel for the best possible combination of weight and strength The carbon fiber also reduces the amount of heat transferred to the shooters hand during rapid or high volume firing The forearm comes with 4 rails a 8.5" rail on top and (3) 3" rails at 36 and 9 O'clock positions The ID of the aluminum collar on the end of the tube is 1.9" with the OD 2.170" The weight of the forearm is 19 ounces or 1.19 lbs. Package Contents: Precision Reflex Armalite Carbon Fiber Forearm Precision Reflex 03-072-315: Carbon Fiber Forearm Gen 3 Armalite .308 15.75 in Natural