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Sigma Six Tactical AR-15 10.5″ 5.56 Barrel

5.56-10.5-1

$76.99

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Specifications:

  • Chamber: 5.56 NATO
  • Contour: Socom
  • Fluted: No
  • Length: 10.5″
  • Twist Rate: 1:7
  • Gas System: Carbine Length
  • Diameter at Gas Port: .750
  • Thread Pitch: 1/2×28
  • Feed Ramps: M4
  • Material: 4150 CMVS
  • Finish: Black Nitride
  • Process: Button Rifled
  • Lining: Black Nitride

Additional information

Weight 1.5 lbs
Dimensions 16 × 4 × 4 in

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