Finish: FDE CerakoteCaliber: 5.56 NATOBarrel: Diamondback Barrels, 16 in, 1:8 RH, Medium, 4150 CrMov, Black NitrideGas System: Mid-LengthBCG: Shot-Peened, Magnetic Particle Inspected Mil-Spec 8620 CarrierUpper: A3 Flattop Forged 7075 T-6 Aluminum, T-MarkedLower: Forged 7075 T-6 Aluminum (DB15 Carbon Lower) w/ MagPul Enhanced Trigger GuardHandguard: 15 in M-Lok Anti-Rotation V4 S-Rail w/ Full Picatinny and QD MountsCharging Handle: Breek Arms Warhammer Mod2 Ambidextrous Charging HandleBolt Catch: Battle Arms Development Enhanced Bolt CatchSafety: Battle Arms Development Ambidextrous Safety SelectorGrip: MagPul MOE K2 GripStock: MagPul CTR StockMagazine: MagPul Gen M3 PMAG, 30RDMagazine Catch: Battle Arms Development Ambidextrous Magazine Catch/ReleaseSights: NoneMuzzle Device: DB Obsidian Muzzle Brake (1/2 x 28)Trigger: Standard Mil-SpecWeight: 6.60 lbsLength (Length Collapsed / Length Extended): 33 in / 36.25 in