Sons of Liberty Gun Works .300 Blackout M89 WO Built Complete Upper Receiver Group - 9 In

Out of stock

Sons of Liberty Gun Works .300 Blackout M89 WO Built Complete Upper Receiver Group - 9 In

Our in house Armorer, and SOLGW Armorer's Course graduate, has assembled these SOLGW uppers for your convenience and quality assurance.  Sons of Liberty Lifetime Warranty has you covered as well!

We've assembled these uppers from new-in-box inventory from our shelves.  All components are SOLGW sourced, including the "WO" marked Bolt Carrier Groups.  The BCGs undergo a 10-round high pressure test using SOLGW testing protocols:  (1) SAAMI proof round, and (9) regular pressure 5.56 rounds fired from full auto, in three magazines of three rounds each.

We offer this upper without a muzzle device, so the user can pick their preferred device.  When bought with a muzzle device, we offer free mounting and timing for your device.  

Full Build List Includes:

  • SOLGW Stripped Upper assembled with Mil-Spec Forward Assist and Ejection Port Cover
  • SOLGW 9" .300 Blackout Combat Barrel
  • SOLGW V2 Gas Block
  • 8.5" SOLGW M76 Rail
  • Mil-Spec Melonite Gas Tube
  • SOLGW Charging Handle
  • "WO" marked SOLGW Bolt Carrier Group
  • SOLGW QD Sling Mount
More Information
Dangerous GoodsNo
Shipping RestrictionITAR/Export Restricted
Caliber.300 Blackout
Gas SystemPistol Length
Length9 Inch
Upper BCG and Charging HandleBCG/Charging Handle Included
Upper Receiver - Stripped or CompleteComplete
Upper Receiver OperationDirect Impingement
Weapon ModelAR-15/M-16
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