APS M4 CQB-R Outter Barrel Extension (3 Options)

  • $9.69
    Unit price per 
Shipping calculated at checkout.


  • Aluminum alloy construction
  • Matte black finish
  • Short, medium and long options allow for customizable barrel length
  • 14mm CCW barrel threads
  • Length options - 3/4", 1-5/8", and 3-3/4" (21mm, 41mm, and 96mm)

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