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This Old Testament Firearms assembled 300 Blackout Upper Receiver Group is the perfect choice if you plan to run a suppressor some or all of the time! We've carefully selected some of the best components available to provide a cost effective and exceptional quality upper receiver!

This 300 Blackout Upper Receiver Group consists of the following components:

• 10" Nitride Finish Ballistic Advantage Modern Series RIGID Profile Barrel
  • Pistol Length Gas System
  • 1/7 Twist
  • 5/8-24 Threaded
• Primary Weapons Systems (PWS) CQB Compensator
  • Designed Specifically For Short Barrel Rifles/Pistols
  • Directs Flash and Sound Forward While Improving Overall Weapon Control
• 10.5" Midwest Industries SP-Series "Suppressor Capable" Free Float MLOK Handguard
  • 1.75" INSIDE Diameter To Fit OVER Most Suppressors
• OT Firearms Forged 7076-T6 M4 Upper Receiver
  • OT Firearms Minimalist/Enhanced Ejection Port Cover
• Nitride Finish Low-Profile Gas Block
• Nitride Finish Pistol Length Gas Tube
• Does NOT Include BCG / Charging Handle