American Made
Buy Machine Shop Direct
Need Assistance? Call us at 425.530.0837
10.5" 5.56 12" Featherweight Rail w/ HD LMC Upper
On Target With
Savings Of
Original Price $459.99
Sale Price $369.99
Bring your best game to the range with an AR upper that stands out from the rest. Built with a premium Hardened Arms LLC machined in-house barrel that is air gauged and stress relieved then Melonited for extreme accuracy and durability along with a 10" HD Quad, free float rail to give you the best function and look. The HD LMC (linear muzzle compensator) is designed to send sound and muzzle blast downrange away from the shooter and others on the firing line. While it does not reduce sound in any way it does direct it away, making shooting much more comfortable. This AR upper not only has incredible styling with its contoured end you will be impressed with its performance and accuracy. We utilize state of the art CNC machines in house to create one of the most exciting muzzle devices in the market today. Get yours today at this great introductory pricing. You won't be disappointed!

AR-15 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 CMV Nitrogen Stress Relieved Barrel
  • Air Gauged, Inspected and head spaced
  • Chambered in 5.56 NATO (will also fire .223 ammo)
  • 6-Groove, 1/7 twist button rifled barrel
  • 10.5" Socom 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
  • 12" Featherweight Quad Rail 
  • 1/2 HD LMC muzzle device

Fits any mil-spec AR15 lower receiver.

Hardened Arms 5.56 AR uppers are  accurate, head spaced, inspected and test fired prior to shipping. They are built in-house using stringent specs, top quality parts and state of the are machining 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 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. Fits any mil-spec AR15 lower receiver.

515 Tucker Ave Friday Harbor, WA 98250 |
Phone: 425-530-0837