This LODO 5.56×45 Upper Assembly comes ready to fire right out of the box upon installation onto any standard AR-15 lower receiver. Our LODO upper receiver group, is assembled from premium components into a high performance-package.The upper assembly comes equipped with a 4150 chrome moly steel barrel. Pictured with a 12" Hear IRS Rail

16" .223/5.56 Hera SS Diamond Cut w/Grip

  • Upper Receiver: A3 Flat-Top, Forged 7075-T6 Aluminum

    Barrel Length: 16″

    Barrel Contour: Socom Diamond Cut

    Barrel Material: 4150 Chrome Moly Steel

    Muzzle Thread Pattern: 1/2 x 28

    Chrome Lined: No

    Barrel Finish: Stainless Steel

    Twist Rate: 1 in 7

    Chamber: .223/5.56×45

    M4 Feed Ramps: Yes

    Muzzle Device: A2 Stainless Steel Gas System Length: Carbine

    Gas Block Diameter: 0.750″

    Handguard: Hera Arms Quad Rail, 12″, Free Float

    Bolt Carrier Assembly Included: No

    Charging Handle: No

    Hera Arms Grip: Yes Weight: 5 lbs.