American Made
Buy Machine Shop Direct
Need Assistance? Call us at 425.530.0837
16" 5.56 Mid length 1/7 Stainless 12" Quad Rail Upper
On Target With
Savings Of
Original Price $329.99
Sale Price $229.99
This product is not available for purchase.
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
  • Stainless Steel 5.56 High End Barrel
  • Chambered in 5.56 NATO (will also fire .223 ammo)
  • 16" Socom 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
  • Mid length gas system
  • A2 flash hider
  • 12 HD Quad 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 and short barreled rifle restrictions. A 20% restocking fee will apply if you cancel any time 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 |
Phone: 425-530-0837