Black Rain Ordnance has made a promise to make your firearm exactly that YOUR firearm. With the addition of the Spec + Series you have over 100 different build configurations and 21 different finish options to choose from. If you are looking to add something special to your arsenal without breaking the bank. The all new Black Rain Ordnance Spec + Series would be a good choice for you. - Barrel: 16 4150 Chromoly Barrel - BCG: Nitride Coated SPEC15 BCG - Caliber: 5.56 NATO - Color: Black Skulls - Furniture: Magpul MOE Buttstock & MOE Grip - Gas System: Direct Impingement; Low Profile Non-Adjustable Gas Block; Carbine Length - Handguard: 12 M-LOK Hybrid Handguard - Length: 34 - Muzzle Device: A2 Flash Hider - Receiver: Anodized and Etched Forged Aluminum Upper/Lower Receiver Set - Trigger: G.I. Trigger - Weight: 7lbs 8oz