Quality AR 15 uppers, AR15 parts, AR-15 rifle manufacturer. Friday Harbor, WA
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20" 5.56mm 1/7 HBAR 15" HD Quad Rail Upper
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Original Price $429.99
Your Price $199.99
Looking to improve your range trips? Want the ballistic performance and harmonics that only a 20" barrel can deliver. These barrels are made in house on our state of the art CNC equipment, using only the highest quality 4150 chrome moly vanadium steel. Stress relieved, air gauged and turned on centers delivers phenomenal accuracy when paired with match ammo.

AR15 Upper Specifications:
    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
    4150 Chrome Moly Vanadium Steel 5.56mm Barrel
    Air-Gauged, Inspected and head-spaced
    Chambered in 5.56mm (Will also shoot .223)
    20" HBAR Profile barrel with M4 Extension
    1/7 Barrel twist
    750" barrel diameter at gas block
    1/2x28 threaded muzzle/barrel
    Low profile gas block
    Barrel dimpled to secure gas block
    Rifle Length gas system
    A2 Flash hider
    15" HD Free Float Quad Rail (No end cap)

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 anytime after you order or if you cannot 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