Quality AR 15 uppers, AR15 parts, AR-15 rifle manufacturer. Friday Harbor, WA
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AR15 Rifle - 20" 6.5 Grendel Melonited 15" Quad Rail Rifle
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Your Price $959.99
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AR15 Grendel Rifle Upper Assembly:
A 20 6.5 Grendel Bull Barrel machined from Mil-B Spec 4150CMV and melonited delivers the accuracy potential of this cartridge in a precision package ideal for hunting and long range tactical engagements. The flat trajectory, high feet per second of the round lends it self to hunting medium game or tactical situations at range.

When ordering please note that the 6.5 Grendel requires a 6.5 Grendel bolt for proper headspacing (5.56mm & 7.62x39mm BCGs will not function properly). 


AR-15 6.5 Grendel 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
    4150 Chrome Moly Vanadium Barrel Machined In House
    QPQ(Melonite)  Finish
    Chambered in 6.5 Grendel
    20" HBAR Barrel Profile barrel with M4 Extension
    1:8 Barrel twist
    .936" diameter at gas block
    5/8x24 threaded muzzle/barrel
    Low profile gas block
    Barrel dimpled to secure gas block
    Rifle length gas system
    Thread Protector
    15" Tactical Quad Rail without end cap

 Bolt Carrier Group Package Included:
    6.5 Grendel Chrome Lined BCG ( JP Rifles Bolt Head )
    Mil-Spec Charging Handle
    ASC 10rd 6.5 Grendel Magazine

Hardened Arms Forged Lower:

  • Mil-Spec 7075 Forged Lower
  • Mil-Spec Dimensions
  • Mil-Spec Lower Parts Kit Installed
  • M4 Collaspible Stock Installed
  • Works with all standard AR15 magazines    

Hardened Arms rifles 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, and rifles. 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.

Rifles must ship to FFL in your state, and may take up to two weeks for delivery. Magazine shown is not included with purchase. 
515 Tucker Ave, Friday Harbor, WA 98250 | sales@hardenedarms.com
Phone: 425-530-0837