What's in the Box Diamondback DB-15 Carbon 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 Carbon Caliber: 5.56 NATO Action: Semi-Automatic Barrel Length: 16" Barrel Material: 4150 Chrome Moly Vanadium Barrel Finish: Black Nitride Barrel Profile: Medium Twist Rate: 1:8" RH Gas System: Carbine-Length, Direct Impingement BCG: Shot-Peened, MPI, Mil-Spec 8620 Carrier Upper Receiver: A3 Flattop, Forged 7075-T6 Aluminum Lower Receiver: Forged 7075-T6 Aluminum (Diamondback Carbon Lower) Finish: Mil-Spec ODG Cerakote Handguard: 15" M-LOK (WS-Rail) Grip: B5 P-Grip 23, Multicam Black Stock: B5 Bravo, Multicam Black Magazine: Magpul Gen M2 PMAG, 30-Round Muzzle Device: A2 Flash Hider (1/2"-28) Sights: None Trigger: Standard Overall Length: 33" Weight: 6.2 lbs