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M4 type barrel extension
MIL-Speck AR-15 Barrel extensions in guaranteed to fit your MIL-SPEC AR-15 while offering optimal performance. Each AR-15 barrel extension features a stainless finish and is heat treated to protect against rust and corrosion and is precision machined to exacting standards with integral feed ramps and a pre-drilled locator pin hole.

X-Caliber, Big Bore Barrel Extension, fits AR 15

  • Brand: X-Caliber
  • Product Code: XCAL-bigboreext-AR15
  • Availability: Out of Stock
  • $69.99 USD