Quality AR 15 uppers, AR15 parts, AR-15 rifle manufacturer. Friday Harbor, WA
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18" Socom 1/9 Tactical 15" SDX MKII Rail - WITH BCG and CH
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Original Price $439.99
Your Price $269.99
Whether your headed to the range or a 3-Gun competition we have put together a package that will perform with the top of the field. Built on a 4150CMV nitrogen stress relieved barrel machined in house to deliver the accuracy you demand. Complete with a bolt carrier group, charging handle and one of our new  15" SDX MKII Rail this upper is lightweight, accurate and reliable.

AR-15 Complete Upper 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
    5.56mm 4150CMV Nitrogen Stress Relieved Hardened Arms Barrel
    1/9 Barrel Twist
    Chambered in 5.56 NATO (will also fire .223 ammo)
    188" barrel with M4 Extension
    .750" diameter at gas block
    1/2x28 threaded muzzle/barrel
    Low profile gas block
    Barrel dimpled to secure gas block
    Mid length gas system
    A2 flash hider
15" SDX MKII Rail

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, Short barreled rife restrictions. 20% restocking fees 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