This rifle is built with a Hammer Forged barrel, providing excellent accuracy and durability. It is finished with black anodizing, providing a corrosion-resistant surface that adds to the overall durability and longevity of the firearm. This rifle is equipped with a Manual Thumb Safety for secure handling and operation.Specifications: Manufacturer: LWRC Model: DI Action: Semi-Auto Caliber/Gauge: 5.56 Overall Length: 32" - 35.25" Barrel Length: 16.10" Capacity: 10 Sights: Optic Ready Receiver Material: Steel Stock Material: Polymer Trigger: Single-Stage Weight: 6.60 lbs Muzzle: A2 Flash Hider Stock Description: 6 Position Finish: Black Anodized Magazine Type: AR-15 Compatible Additional Info: Manual Thumb Safety, Hammer Forged Barrel, 1/2"-28 tpi Thread Pattern.