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    We Ship Fast!

    Order by 1PM CST for Same Day Shipping (Mon-Fri)

    Instant Rifle.  Just Add Lower.

    Don't settle for the budget-line rifle kits you're used to seeing.  Get a complete assembled upper from AT3 Tactical, with a lower build kit including a Magpul CTR Stock and Pistol Grip, plus our enhanced Nickel Teflon Trigger assembly.  This is absolutely the best bang for your buck.

    The AT3 Rifle Kit Includes:

    • AT3 FFML 16" M-LOK Complete Upper
      • Lightweight Ballistic Advantage Barrel
      • AT3 SPEAR M-LOK Handguard and Billet Upper
      • AT3 Black Nitride Bolt Carrier Group
      • Your Choice of Muzzle Device and Charging Handle
    • AT3 Enhanced Nickel Teflon Trigger Group
    • Magpul CTR Stock, MOE Pistol Grip, and Trigger Guard
    • AT3 Buffer Tube Kit and Lower Parts Kit

    Freedom of Choice

    Your choice of standard Black, Magpul Flat Dark Earth, or Magpul Stealth Grey to have your receiver, handguard, and all furniture matching on your new build!

    Your choice of 3 different muzzle devices (choose type with dropdown menu)

    Learn more about these muzzle devices: A2 Flash HiderTactical CompensatorCombat Flash Hider

      Your choice of Standard GI or Extended-Latch Charging Handle

      Quality 7075-T6 charging handles - choose between standard latch and extended latch designs.


      More info:

        This product is built-to-order in our Minnesota facility. Quality takes time - please allow up to 7 days for your order to ship.

        All AT3 upper assemblies come with a Lifetime Warranty - if you ever have an issue, let us know, and we'll make it right. It's that simple.

        Don't see the options you're looking for? Let us quote you a custom upper - contact us now.



        • Barrel Length: 16"
        • Gas System: Midlength
        • Barrel Profile: Pencil
        • Twist Rate: 1:7
        • Barrel Steel: 4150 Chrome Moly Vanadium
        • Barrel Finish: QPQ Corrosion Resistant (Nitride)
        • Chamber: 5.56 NATO
        • Muzzle Thread: 1/2-28
        • Barrel Extension: M4
        • Diameter at Gas Block: .625"
        • Gas Block Type: Low-profile
        • Receiver Material: Billet 6061 T6 Aluminum
        • Receiver Extension Material: 6061 T6 Aluminum

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