Quality AR 15 uppers, AR15 parts, AR-15 rifle manufacturer. Friday Harbor, WA
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16" 556 M4 1/7 Houlding Rail Upper w./BCG & CH Quick Ship
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Your Price $599.99
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A Production overrun upper that is available for immediate shipment. 16" Melonited 5.56mm M4 profile 1/7 twist upper with a Houlding Precision 13" CMX rail. Please note that scorpion upgrade is not available on this upper. Additional items may ship separately to ensure expedited shipping.

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
  • Chrome Moly 5.56 High End Barrel
  • Melonited (Stainless Option will be raw stainless color)
  • Chambered in 5.56 NATO (will also fire .223 ammo)
  • 16" M4 Profile barrel with M4 Extension
  • 1/7 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
  • 13" Houlding Precision CMX Free Float Handguard w/ Integrated Top Picatinny 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