What's in the Box Diamondback Firearms DB-15 5.56 NATO Semi-Auto Rifle (1) 30-Round Magazine Cable Lock Owner's Manual The Carbon Series DB15 is Diamondback s entry level line, offering an outstanding value in an AR-15. The Carbon Series provides all of the reliability and basic features that you need from a rifle and nothing that you don t. Outfitted with Magpul furniture, a DB Carbon lower, and an M-LOK compatible free float handguard, the Carbon Series DB15 is ready for anything at a price you can afford. Firearm Specifications Manufacturer: Diamondback Firearms Model: DB-15 Caliber: 5.56 NATO Finish: Burnt Bronze Cerakote Barrel Length: 16" Barrel Twist: 1:8 RH Barrel Profile: Medium Barrel Material: 4150 CrMov Barrel Finish: Black Nitride Gas System: Carbine Length BCG: Shot-Peened, Magnetic Particle Inspected Mil-Spec 8620 Carrier Upper Receiver: A3 Flattop Forged 7075 T-6 Aluminum Lower Receiver: Forged 7075 T-6 Aluminum, Diamondback Carbon Lower Handguard: 15" M-LOK Rail Grip: Magpul MOE Grip, FDE Magazine: Magpul Gen M3 PMAG, 30 Round Sights: None Muzzle Device: A2 Flash Hider (1/2x28) Trigger: Standard Mil-Spec Weight: 6.6 lbs Length: 32.5" Collapsed / Extended