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16" 300 Blackout Melonited 10" HD Quad Rail AR15 Upper - Pistol Length Gas System
On Target With
Savings Of
Original Price $329.99
Sale Price $239.99
A 300 blackout 16" rifle upper with a pistol length gas system designed to accommodate all your ammo requirements. This machined in house 16" 300 blackout upper from Hardened Arms LLC is perfect for accurate long range hog hunts in the flat lands of Texas with supersonic rounds or suppressed using subsonic rounds up to 220gr. You won't believe the knockdown power and accuracy of your AR15 blackout upper. Utilizing a 4150 CMV, stress relieved, air gauged, Melonited barrel produced in our machine shop for the best in accuracy and reliability, your shooting skills will shine . A high quality 10" quad rail helps keep the weight down and provides Picatinny mounting options for every accessory from bipods, flashlights and lasers to night vision scopes.

AR15 300blk Rifle 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
  • 4150CMV .300 Blackout Barrel Machined In House
  • Melonited Finish
  • Chambered in .300 Blackouto
  • 16" HBAR Profile barrel with M4 Extension
  • 1/8 Barrel twist
  • .750" barrel diameter at gas block
  • 5/8x24 threaded muzzle/barrel
  • Low profile gas block
  • Barrel dimpled to secure gas block
  • Pistol length gas system (allows better cycling of subsonic ammunition)
  • A2 flash hider
  • HD 10" free float quad rail without end cap

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 anytime after ordering 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.

*Thunderbeast Arms" products are NOT compatible with our products, and will void your warranty.

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