Precision Reflex Gen 2 Forearm Rifle Length Octagonal Carbon Fiber w/ M-LOK Slots Black. The forearm is 12 3/4in in length and has M-LOK slots down the length of the forearm at 12 36and 9 O'Clock positions around the forearm. The forearm comes with the same Gen Barrel nut set up with a steel barrel nut jam collar and a series of set screws to lock every thing down to make a rigid platform. The forearm weighs .7lbs. or 11.2 ounces. No rails are included with this forearm. Specifications for Precision Reflex Carbon Fiber Forearms w/ M-LOK Slots: Manufacturer: Precision Reflex Fabric/Material: Carbon Fiber Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Gun Rail: M-LOK Gas System Length: Rifle Length Weight: 11.2 oz Condition: New Quantity: 1 Features of Precision Reflex Gen II Rifle Length Octagonal Carbon Fiber Forearm Gen II Octagonal carbon Fiber Rifle Length forearm is a combination of a steel nitrite barrel nut anodized hard coated aluminum and carbon fiber that creates a unique look. The forearm is 12 3/4" in length and has M-LOK slots down the length of the forearm at 12 36and 9 O'Clock positions around the forearm. The forearm comes with the same Gen Barrel nut set up with a steel barrel nut jam collar and a series of set screws to lock every thing down to make a rigid platform. The forearm weighs .7lbs. or 11.2 ounces. No Rails are included with this forearm. Package Contents: Precision Reflex Carbon Fiber Forearms w/ M-LOK Slots Precision Reflex 05-078-01B: Gen 2 Forearm Rifle Length Octagonal Carbon Fiber w/ M-LOK Slots Black