Barrel: 10.5" Chrome Moly vanadium steel, nitride treated for durability and chambered in 300AAC Blackout with a 1 in 7" twist rate. pistol-length gas barrel is finished off with a PSA 9" Lightweight Hex Full Picatinny M-Lok Free Float Rail, a low profile gas block, and an A2 Flash hider.Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. These uppers are made for us right here in the USA by a mil-spec manufacturer.Optic: The SPARC II AR features rugged construction that's still compact, with a lightweight form-factor. The 2 MOA dot is as easy as point and shoot - it's quick to acquire in close-quarters, but fine enough for pin-point accuracy at extended ranges. With a 50,000 hour battery life and night-vision compatibility at the lowest two settings, the SPARC AR red dot will keep working in a variety of conditions. A unique, integrated base is hassle-free on any AR, or similar platform.*No BCG or Charging Handle included*