PK Firearms Logo

Your home for AR-15 parts & accessories!

PK Firearms Logo

Knights Armament - SR-15 E3 Mod2 CQB 14.5" - Complete Upper


The newest redition of the KAC SR-15 E3 Carbine MOD 2 is designed to be a premium upper receiver with KAC's expertise in producing top tier rifles and components for the military and discerning consumers.  

This upper receiver is lightweight, accurate, and durable.  

The proprietary gas system, rail system, and Bolt/Barrel design ensures that this upper can deliver superior performance in this lightweight yet durable package


  • 14.5" cold hammer forged, lightweight profile, chrome lined barrel
  • Barrel features 1/7 twist, with a proprietary "intermediate" gas system
  • Micro 2-600 meter adjustable elevation/distance rear folding backup iron sight. 
  • Micro front folding backup iron sights
  • SR-15 enhanced E3 bolt carrier group for immense service life
  • URX 4 Keymod handguard
  • KAC 5.56 QDC flash hider and suppressor mount 

Included Accessories

  • KAC Keymod handguard panels
  • KAC Keymod 5 slot picatinny rail
  • KAC SR-15E3 specific heavy buffer

All NFA rules and regulation apply*

Does not need to ship to FFL