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AR-15 5.56 M-LOK Micro Pistol Upper Kit 5.5″ Barrel in Anodized Black

Get the most Micro AR-15 Pistol you can build!  a custom 5.5″ 5.56 barreled upper in a black anodize finish.  1o0% made and assemble in the USA!  Finish off your build with a lower parts kit; lower receiver, and BCG Charging handle combo.  Or you can buy it 100% finished ready to fire and assembled on our website under AR-15 Pistols



In stock

Category: 5.56 Upper Receivers, AR-15 Pistol Upper Receivers, AR-15 Uppers, AR-15 Uppers, Specials
Tags: 5.56, AR-15

When Assembled, this will be 20.5″ Long!

Our Barrel nuts are cut from bar stock carpenter 4140 steel and milled out, giving you a better-than-mil-spec hold for your barrel extension.  We torque our barrel nuts 40-80 lbs onto our uppers, giving no chance of loosening while you shoot.

This handguard is made with 6061 aluminum extrusion that we CNC to the meet our strict standards with top quality tooling.  The top rail is Mil-spec, as are the M-LOK slots.  This is a total length of 4” that leaves about half an inch of barrel (including the threads).  We now use steel barrel nuts that can take greater torque specs while not adding too much weight.  

Our 5.56 (also shoots .223) 5.5” Pistol 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 than you might think.

  • Assembled By Veriforce Tactical
  • 4″ M-LOK handgaurd
  • 100% USA Made Parts
  • Does Not Come With: Bolt Carrier Group or Charging Handle
  • Nitride 5.5″ 1:8 Twist Barrel 5.56 Caliber
  • Black type 3 Anodized Finish
  • 3″ Fake Suppressor
  • Slim Profile Free Float
  • Micro Pistol Buffer Tube Kit Included with custom flat spring and micro buffer
  • Limited Warranty
  • Head-Spaced
Weight: 64 oz
Material: ,
Gas System:
Muzzle Devices:
Barrel Length:
Handguard Length:
Barrel Twist:
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