Quality AR 15 uppers, AR15 parts, AR-15 rifle manufacturer. Friday Harbor, WA
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16" 5.56 M4 1/7 With 15" HDQuad Rail, BCG and CH
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Your Price $389.99
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Thought of as the ultimate complete AR15 upper build. The accuracy of a Hardened Arms 16" 4150CMV barrel and the functionality of a full length 15" quad rail. With the addition of a melonited BCG and a mil-spec charging handle you can be confident your build will set you up for success from the beginning.

AR-15 Upper Receiver Assembly with BCG and Charging Handle:
  • 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
  • CMV 4150 5.56 High End Barrel
  • Melonited barrel (Harder and more durable than chrome lining)
  • 1/7 Barrel Twist (1/9 barrel twist also available)
  • Chambered in 5.56 NATO (will also fire .223 ammo)
  • 16" M4 Profile barrel with M4 Extension
  • .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
  • Free float HD quad rail 15" hand guard without end cap
  • Melonited BCG
  • Mil spec Charging Handle


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 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.

If ordering multiples please call us for less expensive combined shipping rates.


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