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

With the next version of the “Grunt Series” you still get the same incredible 1 MOA or better accuracy for an unbelievable value, the Veriforce AR-15 Upper Receiver In 5.56 “Grunt Series” Mod-1 is unbeatable. It has a slightly more slim modular handguard than the Mod-0 and the A3 flash hider to top it off. The Mod-1 handguard is a bomb proof beast suitable for the toughest environments that isn’t too heavy and bulky.

4 customer reviews


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UPC: 617201302347
Category: 5.56 Upper Receivers, AR-15, AR-15 5.56 .223 Upper Receivers, AR-15 Complete Upper Receivers, AR-15 Uppers, AR-15 Uppers, Specials
Tags: 16" Barrel, 5.56, Anodized, AR-15, Black, Muzzle Devices

Our 5.56 (also shoots .223) 16” nitride barrels are 4150 Chrome Moly Vanadium (CMV). Chrome, molybdenum, and vanadium are impurities added to the barrels, that react positively with the nitriding process with fewer 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 inaccuracy. 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 high wear and tear piece.

  • Forged Upper Receiver
  • A3 Flash Hider
  • Headspace Tested
  • Nitrided 5.56 16″ Barrel With Midlength Gas System
  • Assemble And Built By Veriforce Tactical In Phoenix, Arizona
  • 1 Year Personal Use Warranty
  • 12″ Free Float Slim Handguard With Removable Rails On The 3,6, And 9 O’clock Positions
  • Assemble And Built By Veriforce Tactical In Phoenix, Arizona
  • (Bcg & Charging Handle NOT Included)
Weight: 64 oz
Gas System:
Muzzle Devices:
Barrel Length:
Handguard Length:
Barrel Twist:
Handguard Attachment System:
Country of Origin:

4 reviews for AR-15 Upper Receiver In 5.56 “Grunt Series” Mod-1

  1. Samuel

    For the price, I can’t complain. It looks amazing and functions as it should. Saved me a ton of $$$.

  2. Ben W (verified owner)

    Great product at a great price!

  3. Mitch (verified owner)

    This is my second receiver from Veriforce. The 5.56 “Grunt Series” Mod-1 looks like it was custom made for me. It slipped right on to my lower. The bolt carrier group looks great. I have been to the range a couple times now and the upper functions flawlessly. I have had no failures to feed or eject in more than 300 rounds. I have not shot from enough distance to judge sub-moa accuracy, but I am sure it is more accurate than I am.

  4. Desiree Howdershelt (verified owner)


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