Geissele 5.56 USASOC Improved Barreled AR-15 Near-Clone Upper Receiver – Desert Dirt – 10.3″


  • Near clone of the USASOC URGI weapon system
  • 10.3” CHF Daniel Defense barrel
  • Carbine length gas system
  • Pinned Geissele Super Gas Block
  • Threaded 1/2×28
  • 9.3” Geissele Super Modular Rail MK16 handguard
  • Desert Dirt anodized finish
  • 8 sides of M-LOK attachment slots
  • M4 flat top Mil-Spec upper receiver
  • Type III hardcoat anodized
  • Does not include BCG, charging handle, muzzle device



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SKU08-177 Category

NOTE: This upper assembly has a barrel less than 16” in length. These uppers are intended for use in AR-15 pistols or legal short-barreled rifles. Other configurations may violate Federal law.

The Geissele USASOC Improved Barreled Upper Receiver is the perfect platform for building a near-clone of the URGI 5.56 carbine. This barreled upper receiver features a 10.3” cold hammer forged Daniel Defense barrel with a carbine length gas system that has been tuned to take full advantage of the M855A1 ammunition. The barrel is threaded 1/2×28 and does not come with a muzzle device attached, so you can choose your favorite or use the Surefire SF4p 4 prong flash hider. This version uses the 9.3” MK16 free floated M-LOK handguard that protects the gas block while leaving enough room for a suppressor to be attached. One of the toughest handguards on the market, the MK16 offers plenty of options for setting up your AR however you see fit and features a desert dirt anodized finish.


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