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CORE15® TAC SBR 300 BO Upper



  • 9.5” 416R 1:8 Stainless Steel Barrel (5/8x24 TPI)
  • Pistol Length Gas System
  • CORE15 Forged 7075-T6 M4 Flattop Upper with Internal Dry Lube and Laser T Marks
  • CORE15 V.2 Hardcore Billet Charging Handle
  • Ergo Z Free Float Quad Rail Carbine Length
  • SureFire 3 Prong
  • Low Profile Gas Block
  • M16 Bolt Carrier Group (HPT & MPI)
  • CORE15’s NO BS Lifetime Warranty!

Download: CORE15 Rifle Manual PDF (6mb)

Download: CORE30 Rifle Manual PDF (6mb)

NOTE: Serialized parts are required by Federal Law to be shipped to an FFL (Federal Firearms License) holder. Please fill in the Ship To address to reflect the chosen FFL's Premises address.

To expedite the process have the FFL holder email a copy of their FFL to with your information (Customer's name and Order Number).


 In order to print and view a file in Adobe PDF format, you first need to have the free Adobe Acrobat Reader version 7.0 or newer installed on your computer. You can download the free Adobe Acrobat Reader from Adobe’s Web site.