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BARREL NUT ALIGNMENT GAUGE

BARREL NUT ALIGNMENT GAUGE

  • Sale
  • $16.95


Fits into the end of the bolt carrier key to ensure that the barrel nut is properly aligned during installation of AR-15/M16 barrel. Improper alignment can damage the bolt carrier key and/or the gas tube.

SPECS: Steel. .178" (4.5mm) diameter x 3" (7.6cm) long.