Quality AR 15 uppers, AR15 parts, AR-15 rifle manufacturer. Friday Harbor, WA
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7.5 5.56 Quad Rail Complete Pistol w/ Sig kit
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Your Price $899.99
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7.5 5.56 AR15 Tactical Quad Rail pistol.pistol buffer kit and SB-15 Sig Arm Brace
Complete pistols are accurate, reliable, head spaced, and test fired before shipping to your FFL.

Available in our Limited Edition Constitutional Framers - CLICK HERE

Hardened Arms Lower:
  • Mil-Spec 7075 Forged Lower
  • Mil-Spec Dimensions
  • Mil-Spec Lower Parts Kit
  • AR15 Pistol buffer tube installed
  • Single point sling attachment point on egg plate
  • Works with all standard AR15 magazines (Does not come with Magazine)

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 High End Barrel
  • Black Mag-Phos Barrel Finish
  • .5x28 MM Barrel with 1/9 twist
  • .750" diameter at gas block
  • .5x28 threaded muzzle/barrel
  • Low profile gas block
  • Barrel dimpled to secure gas block
  • Pistol length gas system
  • A2 flash hider_
  • Tactical Quad Rail free float 7 hand guard WITHOUT end cap
Full Auto Chrome Lined Bolt Carrier Group
Mil-Spec Charging Handle

Hardened Arms rifles and pistols 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.

Pistol/Rifles must ship to FFL in your state, and may take up to 4 weeks for delivery depending on location and holidays. Magazine shown is not included with purchase.
515 Tucker Ave, Friday Harbor, WA 98250 | sales@hardenedarms.com
Phone: 425-530-0837