AR-15 Upper Receiver In 5.56 “Grunt Series” Mod-0

(1 customer review)

$369.95 $199.95

Getting into the AR15 can get expensive pretty fast, especially when getting at least 1 MOA accuracy or better out of your rifle with a modular handguard that accepts Picatinny rails (included). That’s where the Veriforce AR-15 Upper Receiver In 5.56 “Grunt Series” Mod-0 comes into play! The handguard has a 2″ outer diameter and 1.75″ inner diameter. You will not find a better value and quality modular AR 15 upper anywhere, period. 



Our 5.56 (also shoots .223) 16” nitride barrels are 4150 Chrome Moly Vanadium (ChMV). Chrome, molybdenum, and vanadium are impurities added to the barrels, that react positively with the nitriding process with less imperfections and a smoother finish.  By not lining our barrels with Chrome, we can keep our smooth bore intact as we do the Nitriding process.  The result is a more accurate barrel.  Our barrels should give you at least a 1” grouping at 100yards.  Most of our barrels shoot Sub-MOA, which means under 1” even with ball ammo.  The average for this barrel is 1/2” grouping at 100 yards.  This barrel is good for 15,000 rounds before you will see a drop in accuracy. A 1:8 twist is what we find is the most versatile for the common grain bullets. Lastly, we use Nickel Boron on our barrel extension for the utmost smoothness and durability since this is a high wear and tear piece.

  • Forged Upper Receiver
  • A2 Flash Hider
  • 1 Year Limited Warranty
  • Nitrided 5.56 16″ Barrel With Carbine Gas System
  • Assemble And Built By Veriforce Tactical In Phoenix, Arizona
  • BCG & Charging Handle Not Included ($110 Extra)
  • 12″ Free Float Handguard With Removable Rails On The 3,6, And 9 O’clock Positions
  • Headspace Tested
  • Large 2 Inch Diameter Handguard

Additional information

Weight64 oz
Country of Origin

Gas System

Muzzle Devices

Barrel Length


Handguard Length

Barrel Twist


Handguard Attachment System

1 review for AR-15 Upper Receiver In 5.56 “Grunt Series” Mod-0

  1. Wayne Knight

    Grunt series = Fantastic
    Shoots like a champ, no problems at all!

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