MPN: APAR620269M85 / APAR620270M85


  • Last round bolt hold open mechanism
  • Caliber: 9mm
  • Finish: Type III Class 2 Hardcoat Anodized or Cerakoted Flat Dark Earth
  • Upper Receiver: Aero Precision EPC-9 Enhanced Upper w/ LRBHO - 7075-T6 Aluminum
  • Handguard: 7.3-Inch Enhanced M-LOK Handguard
  • Muzzle Device: A2 Flash Hider
  • Barrel: 8.3-Inch 1:10 twist, QPQ Coated 4150 Chrome Moly Vanadium Barrel
  • Muzzle Thread Pattern: 1/2"-28 TPI
  • Bolt Carrier Group: Not Included
  • Charging Handle: Not Included

*This upper assembly does not come with Bolt Carrier Group and Charging Handle.

*This upper receiver assembly has a barrel that is shorter than 16". This upper is only for use on AR pistol lower receivers and NFA registered Short-Barreled Rifle (SBR) lower receivers. All NFA laws apply!

NOTE: The EPC last round bolt hold open is ONLY compatible with appropriate GLOCK® pattern magazines.


  • Weight: 2 lb. 1 oz.
  • Barrel Length: 8.3-Inch
  • Handguard Length: 7.3-Inch
  • Overall Length: 16.5-Inch


  • 9mm AR lower receiver


  • 1x Aero Precision 8.3" EPC-9 Enhanced 9mm Complete Upper Receiver



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