AR-15 300 AAC BLK 10.5" Nitro-Met Quad Upper Assembly with Socom Style Brake

Product Code:MAR-300-10-SOCOM
Availability:In Stock
  • $259.95

  • $399.95

Available Options

AR-15 300 AAC BLK 10.5" Nitro-Met Quad Upper Assembly with Socom Style Brake

AR-15 300 AAC BLK 10.5" Nitro-Met Quad Upper Assembly with Socom Style Brake - Experience unparalleled shooting performance with Moriarti Armaments' 300 Blackout Upper, crafted with meticulous attention to detail to ensure precision and reliability. This is the key to unlocking a truly potent shooting experience. It is a perfect addition to your AR-15 build. All you need is a case of ammo to change your standard AR 5.56 to a new 300 Blackout upper.

Assembly Features:
  • Chamber - 300 AAC
  • Barrel Twist - 1x7
  • Barrel Thread - 5/8 x 24
  • Barrel Steel - 4150 Chrome Moly with Nitro-Met coating, CNC machined, M4 feedramps
  • Muzzle Brake - AR-15 Gen 2 Micro Reverse Thread slip over Socom style fake suppressor
  • Handguard - Midlength Hardcoat Anodized Quadrail Free Float 
  • Gas Block - .750 Low Profile steel gas block and hardcoat anodized; pistol length gas system 
  • Upper Receiver - A3 Flat-Top Upper, made from certified 7075-T6 aluminum forgings. Black hardcoat anodized to gov. specs; assembled
  • Bolt Carrier Group - Not Included
  • Charging Handle - Not Included

Images may not be an exact representation of the product.

Luke N. 06/16/2022

My wife loves this upper. For me, I feel the quad rail is a little chonky but not cheese grater grade. The barrel and bcg is top notch, recorded 1.5 moa w/ 125gr supers. No failures in more than 600 rounds of all ammo types. I knocked a star off because of the set screw style of the hand guard and "comp". The provided muzzle device is as good as garbage, Moriarti should just provide a thread cap and let Wish.com handle these "socom comps".

Daniel 11/10/2020

Outstanding quality. Perfect fit for 80%.

Jason 06/22/2020

Giving this 2 stars because of the muzzle brake and customer service. The threads on the muzzle brake were stripped when I received the upper. It was loose right out of the package. I snugged it up and thought it was good, but it came loose again after 5 rounds fired through it. I emailed the company 2 weeks ago and asked for a new muzzle brake, and no response. Will not be buying from this company again.

Thanks

William Laycock 06/14/2020

It functions like a dream the fake suppressor looks cool but the screws won't stay tight and keeps comin off so it's goin to get replaced with something else

Dark Ghost Marine 06/05/2020

I was looking for a Pistol Kit. The one I had my eye on o PSA's site went out of stock. This is my first Build so I decided to just piece it out and enjoy putting it together with parts from here at there. I saw this upper and loved the way the brake looked. I placed my order as a birthday present to myself, I saw it would take 1 - 5 business days for processing, I got the email saying it had shipped, I was expecting 10 - 18 days for shipping. It came in on yesterday 6.4.2020. It looks even better in person. I will be purchasing another upper from Moriarti Armaments. Fast Shipping.. I will do another build and definitely purchase from here again.

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Tags: ar-15, 300, aac, blk, 10.5", nitro-met, quad, upper, assembly, with, socom, style, brake

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