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Complete Upper Assembly Service

$25.00

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SKU: upper-assembly-service Category:
Description
Upper assembly includes:
  • Inspection of all appropriate components (headspacing of barrel, feed ramp alignment, gauging of gas port)
  • All hardware torqued to mil-spec with appropriate Aeroshell 33ms/Permatex 243 on all critical components.
  • Roll pins seated to appropriate depth
  • Barrel nut timed/torqued to manufacturer’s specification
  • Dimpling of barrel for maximum set screw depth (centered over gas port)
  • Muzzle device timed at 1200 position with appropriate crush washer/shims
  • Gas tube provided per assembly service