Zparts Viper M4 Steel Bolt Carrier

Zparts Viper M4 Steel Bolt Carrier

$129.00
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FOR VIPER M4, SR15, SR16 Includes: disassemble heavier mass Fully CNC machined with manganese phosphate surface treatment (M3 Screw) Recommended fastening torque 1.96 N.m Please use torque wrench and threadlocker Piston bore diameter: 19mm For airsoft use only

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