OT Firearms 11.5" Upper Receiver Group w/GEN 2 MLOK Handguard (Includes BCG / CH) - 5.56 NATO

$575.00 $519.99
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Old Testament Firearms offers this phenomenal 11.5-Inch AR15 Rifle Upper Receiver Group chambered in 5.56 NATO (.223) with carbine gas system and .070" gas port for reliable operation suppressed or unsurpressed. It provides exceptional reliability and durability! Regardless of how much you shoot, you should never have to worry about your firearm functioning properly and with our OTF Upper Receiver Group - You won't have to. Our Gen2 Free Float M-LOK Handguard is 9.85" in length. It locks up solid with anti-rotation tabs and offers M-LOK slots for mounting of your weapon lights, foregrip or grip panels.

It is built with quality, made in the U.S.A. components to provide reliable function even after thousands of rounds! We don't strive to sell the lowest price upper receiver groups, but we do aim to provide the best value for the money without sacrificing any quality or reliability.


This 5.56 Upper Receiver Group consists of the following components:

  • 11.5" OT Firearms 4150cmv Government Profile AR15 Barrel - 5.56 NATO, Carbine Gas, 0.070" Gas Port, 1/7 Twist 
  • 10" Free Float OT Firearms M-LOK Gen 2 Handguard (9.85" Top Rail Length)
  • OT Firearms Forged 7076-T6 M4 Upper Receiver
  • Full Auto / M16 Nitride Finish Bolt Carrier Group (9310 Bolt)
  • Nitride Finish Low-Profile Gas Block
  • Nitride Finish Carbine Length Gas Tube
  • A2 Flash Hider
  • Mil-Spec Charging Handle (Ambi Upgrade Available $30)


Concerned about quality? Don't Be! Old Testament Firearms stands behind their products! All Complete AR15 / LR308 Assemblies and Firearms come with a LIFETIME WARRANTY against manufacturing defects and workmanship! Our components are meant to be put to work!