Colt 16-inch 9mm SMG Upper Receiver Assembly


Category: Product ID: 491


Colt 16-inch 9mm SMG Upper Receiver Assembly


The Colt AR6951CK Upper Assembly is utilized on the semi-automatic version of the SMG model submachine gun. This upper receiver allows for a free-floated barrel and also features a gas-block mounted fixed front sight post with bayonet lug. The barrel is Colt’s standard 19″ chrome lined M4 barrel with an A2 flash hider up front.

Package Contents

  • Colt AR6951CK Complete Upper Assembly
  • Complete 9mm SMG Full Auto Bolt Carrier Assembly
  • Charging Handle


  • 16-Inch 1/10 RH twist Mil-Spec chrome lined MP tested barrel
  • Unique direct gas operating system eliminates the conventional operating rod and results in fewer and lighter components
  • Accommodates the full range of 9mm NATO ammunition
  • Straight-line construction disperses recoil straight back to the shoulder, increasing handling capabilities, especially during repeated fire
  • Cartridge case deflector allows easy operation in both right and left handed shooting positions for increased tactical applications
  • Muzzle compensator further reduces muzzle climb and helps eliminate flash and dust signatures
  • Ejection port cover protects the chamber from dust and mud
  • Field strips easily without special tools for simple field user maintenance
  • Flat top receiver allows for removable carrying handle and easy mounting of accessories
  • High strength materials for greater comfort and effectiveness
  • Caliber – 9mm
  • Closed Bolt, Blowback
  • Front Sight – Adjustable front
  • Flash Hider


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