Home > PRODUCTS > UPPERS > 300 AAC Blackout AR-15 Upper Assemblies >

Radical Firearms 10.5" 300 AAC Blackout Radical Upper with 10" FQR
Radical Firearms 10.5" 300 AAC Blackout Radical Upper with 10" FQR

MSRP: $259.95

Stock Status:Ready to build; check lead times
Availability: Current Production Time Up To 4 Weeks
Product Code: FU10.5-300HBAR-10FQR


Charging Handle*:

Muzzle Options*:

***Please select your options on the right hand side for BCG, Charging Handle, and other choices***

The Radical Firearms 10.5" M4 Upper Receiver is a flat top, law-enforcement grade, drop in receiver, ready to be mounted to any Mil-Spec AR-15 lower receiver! This fully mil-spec compliant receiver provides a high-quality upper for any level budget or shooter. Comes complete and assembled with Upper Receiver, Forward Assist, Ejection Port Door, Barrel Nut. 10.5" HBAR Barrel and A2 Flash Hider. Bolt Carrier Group and Charging Handle are additional and are offered at discounted prices in the drop down menus.

  • 10.5" HBAR 4140V Chromoly Barrel With Melonite Coating
  • 1 in 8" twist rate
  • M4 Feed Ramps
  • Low Profile Gas Block
  • Pistol Length Gas System
  • M16 BCG With Melonite Coating
  • MIL-STD Charging Handle
  • 10" Radical Firearms Free Float FQR (First-Gen Quad Rail)
  • Quad Picatinny Rails for Mounting Lights, Lasers, Bipods & Sights
  • MIL-STD Forged Upper Receiver with RF Dimpled Forward Assist, Shell Deflector, Dust Cover
  • Made in Houston, Texas U.S.A.!

Share your knowledge of this product. Be the first to write a review »