Quality AR 15 uppers, AR15 parts, AR-15 rifle manufacturer. Friday Harbor, WA
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8.5" 300BO 7" Talon Rail AR15 Upper Receiver (Quick Ship)
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Your Price $379.99
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An 8.5" 300 Blackout upper featuring Hardened Arm's New Talon 7" free float hand guard. A strong but light weight 6061-T6 hand guard with a continuous top rail and dual lock up feature.

AR15 5.56mm Pistol Upper Receiver Assembly:

    Hardened Arms M4 Feed Ramp Flat Top Receiver
    Forged 7075 aluminum upper receiver
    Feed ramps for increased feeding reliability on barrel and upper
    4140CMV Melonited High End Barrel
    Chambered in 300 Blackout
    8.5" M4 Profile barrel with M4 Extension
    1/8 Barrel Twist
    .750" diameter at gas block
    5/8x24 threaded muzzle/barrel
    Low profile gas block
    Barrel dimpled to secure gas block
    Pistol length gas system
    A2 flash hider
    Talon Rail free float 7" Hand guard


Fits any mil-spec AR15 lower receiver.

Hardened Arms uppers are high end, accurate, head spaced, inspected and test fired prior to shipping. They are built using stringent specs, top quality parts and procedures to ensure maximum reliability and performance.

You are responsible for knowing your state laws regarding barrel lengths, pistol and short barreled rifle restrictions. A 20% restocking fee will apply if you cancel anytime after ordering or if you can not take delivery due to state restriction. Dealer programs are available on our website. Two year warranty against manufacturer defects. Finishes will wear with use, no warranties apply to finish wear.
515 Tucker Ave, Friday Harbor, WA 98250 | sales@hardenedarms.com
Phone: 425-530-0837