• VIPER M4 Steel Bolt Carrier
  • VIPER M4 Steel Bolt Carrier

VIPER M4 Steel Bolt Carrier

♦ FOR VIPER M4, SR15, SR16
♦ Include: disassemble heavier mass
♦ Full CNC machining, manganese phosphate surface treatment
♦ (M3 Screw)Recommended fastening torque 1.96 N.m
♦ Please use torque wrench and threadlocker
♦ Piston bore diameter: 19mm
Model : VIPER-M4-001
Material:STEEL

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