Precision Reflex Retro Carbon Fiber Forearm Gen 2 Rifle Length 12.75 in Black. The forearm is 12 1/2in in length and has 1 8.5in rail on the top with 2 stainless steel lugs used to secure SPR top rail to forearm. It also has 3 3in rails at 36 and 9 O clock positions. The forearm weighs 1.03 lbs. Specifications for Precision Reflex Retro Carbon Fiber Forearm: Manufacturer: Precision Reflex Fabric/Material: Carbon Fiber Aluminum Gun Make: AR Platform Gun Model: M16 AR-15 Gun Type: Rifle Handguard Length: 12.5 in Handguard Type: Free-Float Gun Rail: Picatinny Gas System Length: Rifle Length Weight: 18.3 oz Condition: New Mount Type: Rail Quantity: 1 Features: The Gen II Rifle length forearm is a combination of anodized hard coated aluminum and carbon fiber that creates the look of the original mark 12 Mod 0 rifle. The forearm is 12 3/4in in length and has 1 8.5in rail on the top with 2 stainless steel lugs used to secure SPR top rail to forearm. It also has 3 3in rails at 36 and 9 O clock positions. The forearm weighs 1.03 lbs. Package Contents: Precision Reflex Retro Carbon Fiber Forearm Precision Reflex 05-073-G2B: Retro Carbon Fiber Forearm Gen 2 Rifle Length 12.75 in Black