Quality AR 15 uppers, AR15 parts, AR-15 rifle manufacturer. Friday Harbor, WA
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14.5" 5.56pinned 1/9 10" SDX Mk II Slim Line Rail Upper - wout BCG & CH
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Original Price $329.99
Your Price $239.99
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AR-15 Barreled Upper Receiver Assembly:

    Hardened Arms M4 Feed Ramp Flat Top Receiver
    Black anodized mil-spec finished upper receiver
    Feed ramps for increased feeding reliability on barrel and upper
    Laser etched T-Marked upper receiver
    Chrome Moly High End Steel Barrel
    Black Melonite Finish
    Chambered in 5.56 NATO (will also fire .223 ammo)
    14.5" HBAR Profile barrel with M4 Extension
    1/9 Barrel Twist
    .750" diameter at gas block
    1/2x28 threaded muzzle/barrel
    Low profile gas block
    Barrel dimpled to secure gas block
    Carbine length gas system
    A2 flash hider
    10" SDX Mk II MLok Rail 
    Pin and Welded to make it a Rifle upper

IS NOT CONSIDERED A SHORT BARREL RIFLED UPPER, BECAUSE FLASH HIDER IS PINNED AND WELDED

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 any time after you order or 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. Fits any mil-spec AR15 lower receiver.

515 Tucker Ave, Friday Harbor, WA 98250 | sales@hardenedarms.com
Phone: 425-530-0837